Q: What number goes into 21 and 84 and 15 and 60?

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The largest number that goes into both (the greatest common factor) is 4. 16/4=4 60/4=15

The LCM of 60 and 21 is 420

5 and 15 go into 60 & 75.

15 / 0.6 = 25 Therefore, 15 is 60 percent of 25.

4 goes into 60 15 times.

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21/60 - 1/15 = 17/60 To subtract fractions, make them have the same denominator (bottom number) by converting them to equivalent fractions (usually with the lowest common multiple of the denominators) and then subtract the numerators (top numbers). So for 21/60 - 1/15: lcm(15, 60) = 60: 21/60 = 21/60 1/15 = 4/60 ⇒ 21/60 - 1/15 = 21/60 - 4/60 = 17/60

1, 3, 5 and 15

The largest number that goes into both (the greatest common factor) is 4. 16/4=4 60/4=15

The LCM of 60 and 21 is 420

60 ÷ 4 = 15

not by a whole number 15 x 4 = 60 15 x 5 = 75 63/15 = 21/5 = 42/10 = 4.2

Designate the unknown number by x. Then (60 %)x = 21, or 0.6x = 21, or x = 35

5 and 15 go into 60 & 75.

900 divided by 60 is 15. So, 60 goes into 900 15 times.

15 / 0.6 = 25 Therefore, 15 is 60 percent of 25.

4 goes into 60 15 times.

21 is 35% of 60