Subtract 7/63 from 49/30, Solve 1 19/30

Subtract 7/63 from 49/30

1^st number: 1 19/30, 2^nd number: 7/63

49/30 - 7/63 is 137/90.

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

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 30 × 21 = 630,
49/30 = 49 × 21/30 × 21 = 1029/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
7/63 = 7 × 10/63 × 10 = 70/630
Subtract the two like fractions:
1029/630 - 70/630 = 1029 - 70/630 = 959/630
After reducing the fraction, the answer is 137/90
In mixed form: 147/90

MathStep (Works offline)

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