7/12 + 1/10
17/16
9/16 + 1/2
Get the LCD (Least Common Denominator) then add.
= (9 + 8)/16
= 17/16
Example: 16/48 x 2/3 The GCF of 16 and 48 is 16, so 16 can be divided into both numbers, simplifying 16/48 to 1/3. The problem then becomes 1/3 x 2/3 = 2/9
-1/16 + 5/16 = 4/16 = 1/4
15/16
5/8 + 1/16 = 10/16 + 1/16 = 11/16
one 1/16 x 16 = 16/16 = 1/1 = 1
1/2
Example: 16/48 x 2/3 The GCF of 16 and 48 is 16, so 16 can be divided into both numbers, simplifying 16/48 to 1/3. The problem then becomes 1/3 x 2/3 = 2/9
1/a = 1/b: cross multiplying gives a = b
20/14 is an 'improper' fraction - therefore it will reduce as follows...First - you have enough fractions of 14 in 20/14 to make one with some left over, so you have 16/14. Then its just a matter of simplifying 6/14 which is 3/7, and adding it to the 1 you for from the first so you finally end up with the mixed number of 13/7
-1/16 + 5/16 = 4/16 = 1/4
15/16
16 / 1 * 1 / 16 = 16 / 16 = 1
5/8 + 1/16 = 10/16 + 1/16 = 11/16
16/1 = 16
one 1/16 x 16 = 16/16 = 1/1 = 1
you have to get the denominator the same so... 1/2 x 8 = 8/16 . 1/4 x 4 = 4/16 . 1/8 x 2 = 2/16 . ADD 1/16 ---->1/16 . = 15/16
1/2+1/4+1/8+1/16 give all the fractions the same denominator =8/16+4/16+2/16+1/16 add them up =12/16+3/16 =15/16 hope it helped (: