Subtract 98/56 from 70/49
1st number: 1 21/49, 2nd number: 1 42/56
70/49 - 98/56 is -9/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 56 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
70/49 = 70 × 8/49 × 8 = 560/392 - Likewise, for the 2nd fraction, since 56 × 7 = 392,
98/56 = 98 × 7/56 × 7 = 686/392 - Subtract the two like fractions:
560/392 - 686/392 = 560 - 686/392 = -126/392 - After reducing the fraction, the answer is -9/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/98-98/56