Subtract 20/16 from 70/49
1st number: 1 21/49, 2nd number: 1 4/16
70/49 - 20/16 is 5/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 16 is 784
Next, find the equivalent fraction of both fractional numbers with denominator 784 - For the 1st fraction, since 49 × 16 = 784,
70/49 = 70 × 16/49 × 16 = 1120/784 - Likewise, for the 2nd fraction, since 16 × 49 = 784,
20/16 = 20 × 49/16 × 49 = 980/784 - Subtract the two like fractions:
1120/784 - 980/784 = 1120 - 980/784 = 140/784 - After reducing the fraction, the answer is 5/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/49-40/16 70/98-20/16 70/49-20/32 70/49-60/16 70/49-20/48 70/49-20/80