21 x 7 =147
7x2=14x7=21x7=28x7=35x7=42x7=49x7=56x7=63
Improve 21x1=21 21x2=42 21x3=63 21x4=84 21x5=105 21x6=126 21x7=147 21x8=168 21x9=189 21x10=210
The multiples of 21 up to 500 are as follows: 21x1=21 21x2=42 21x3=63 21x4=84 21x5=105 21x6=126 21x7=147 21x8=168 21x9=189 21x10=210 21x11=231 21x12=252 21x13=273 21x14=294 21x15=315 21x16=336 21x17=357 21x18=378 21x19=399 21x20=420 21x21=441 21x22=462 21x23=483 21x24=504
Engine Type Liquid cooled, SOHC, 5-valve, 660cc, four-stroke single Bore x Stroke 100mm x 84mm Compression Ratio 9.2:1 Carburetion Dual Mikuni 33mm BSR Ignition CDI Starting System Electric Transmission 5-speed manual clutch with reverse Drive Train 2WD, chain Chassis Front Suspension Independent Double Wishbone, 9.1" travel with preload adjustment Rear Suspension Aluminum Swing Arm, 8.7" travel with rebound, compression and preload adjustment Brakes F/R Hydraulic Discs Tires F/R 21x7-10 Radial/20x10-9 Radial Dimensions L x W x H 72.0" x 43.0" x 45.0" Seat Height 33.9" Wheelbase 49.0" Ground Clearance 4.5" Fuel Capacity 11 liters Dry Weight 398 Lbs.
To add or subtract fractions the denominators must be the same. If the denominators are different, convert them into equivalent fractions with the same denominator. Ideally the new denominator should be the lowest common multiples of the denominators, but a simple solution is to use the "butterfly" method: 1. Multiply the denominators together to create the new denominator 2. Multiple the numerator of the first fraction by the denominator of the second fraction to get the new first numerator 3. Multiple the numerator of the second fraction by the numerator of the first fraction to get the new second numerator. The fractions are then added/subtracted by keeping the denominator and adding/subtracting the denominators, and simplify the result (by dividing the numerator and denominator by any common factors until the only common factor is 1). eg 2/3 - 1/6 = (2x6)/(3x6) - (1x3)/(3x6) = 12/18 - 3/18 = (12-3)/18 = 9/18 = (1x9)/(2x9) = 1/2 To multiply fractions multiply the numerators together and multiply the denominators together and simplify. eg 2/3 × 1/6 = (2×1)/(3×6) = 2/18 = (1x2)/(9x2) = 1/9 To divide fractions, invert the divisor and multiply as above. eg 4/7 ÷ 2/3 = 4/7 × 3/2 = (4×3)/(7×2) = 12/14 = (2x6)/(2x7) = 6/7 To work with mixed numbers, it is easier to convert them into an improper fractions, solve as above, and convert any improper fraction back to a mixed number. To convert a mixed number into an improper fraction multiply the whole number by the denominator and add the numerator to get the new numerator and keep the denominator. eg 2 3/4 = (2x4+3)/4 = 11/4 To convert an improper fraction into a mixed number divide the numerator by the denominator to get a quotient and a remainder; the quotient is the whole number and the remainder is the numerator over the original denominator. eg 11/4: 11 ÷ 4 = 2 r 3 → 11/4 = 2 3/4 This can be written as the reverse of the above conversion: eg 11/4 = (2x4+3)/4 = 2 3/4 Though, normally only the first and last steps would be shown. eg 4 1/5 ÷ 3/7 = (4x5+1)/5 ÷ 3/7 = 21/5 ÷ 3/7 = 21/5 × 7/3 = (21x7)/(5x3) = (3x7x7)/(5x3) = 49/5 = (9x5+4)/5 = 9 4/5