Subtract 42/64 from 70/7
1st number: 10 0/7, 2nd number: 42/64
70/7 - 42/64 is 299/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 64 is 448
Next, find the equivalent fraction of both fractional numbers with denominator 448 - For the 1st fraction, since 7 × 64 = 448,
70/7 = 70 × 64/7 × 64 = 4480/448 - Likewise, for the 2nd fraction, since 64 × 7 = 448,
42/64 = 42 × 7/64 × 7 = 294/448 - Subtract the two like fractions:
4480/448 - 294/448 = 4480 - 294/448 = 4186/448 - After reducing the fraction, the answer is 299/32
- In mixed form: 911/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/7-84/64 70/14-42/64 70/21-42/64 70/35-42/64 70/49-42/64