Subtract 7/15 from 63/9, Solve 7 0/9

Subtract 7/15 from 63/9

1^st number: 7 0/9, 2^nd number: 7/15

63/9 - 7/15 is 98/15.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 15 is 45

Next, find the equivalent fraction of both fractional numbers with denominator 45
For the 1st fraction, since 9 × 5 = 45,
63/9 = 63 × 5/9 × 5 = 315/45
Likewise, for the 2nd fraction, since 15 × 3 = 45,
7/15 = 7 × 3/15 × 3 = 21/45
Subtract the two like fractions:
315/45 - 21/45 = 315 - 21/45 = 294/45
After reducing the fraction, the answer is 98/15
In mixed form: 68/15

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad