Subtract 20/42 from 70/32
1st number: 2 6/32, 2nd number: 20/42
70/32 - 20/42 is 575/336.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 42 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 32 × 21 = 672,
70/32 = 70 × 21/32 × 21 = 1470/672 - Likewise, for the 2nd fraction, since 42 × 16 = 672,
20/42 = 20 × 16/42 × 16 = 320/672 - Subtract the two like fractions:
1470/672 - 320/672 = 1470 - 320/672 = 1150/672 - After reducing the fraction, the answer is 575/336
- In mixed form: 1239/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/32-40/42 70/64-20/42 70/32-20/84 70/32-60/42 70/96-20/42