Subtract 70/63 from 32/5, Solve 6 2/5

Subtract 70/63 from 32/5

1^st number: 6 2/5, 2^nd number: 1 7/63

32/5 - 70/63 is 238/45.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 5 × 63 = 315,
32/5 = 32 × 63/5 × 63 = 2016/315
Likewise, for the 2nd fraction, since 63 × 5 = 315,
70/63 = 70 × 5/63 × 5 = 350/315
Subtract the two like fractions:
2016/315 - 350/315 = 2016 - 350/315 = 1666/315
After reducing the fraction, the answer is 238/45
In mixed form: 513/45

MathStep (Works offline)

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