Subtract 35/30 from 9/63, Solve 9/63

Subtract 35/30 from 9/63

1^st number: 9/63, 2^nd number: 1 5/30

9/63 - 35/30 is -43/42.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 63 × 10 = 630,
9/63 = 9 × 10/63 × 10 = 90/630
Likewise, for the 2nd fraction, since 30 × 21 = 630,
35/30 = 35 × 21/30 × 21 = 735/630
Subtract the two like fractions:
90/630 - 735/630 = 90 - 735/630 = -645/630
After reducing the fraction, the answer is -43/42

MathStep (Works offline)

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