Subtract 63/8 from 70/98
1st number: 70/98, 2nd number: 7 7/8
70/98 - 63/8 is -401/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 98 × 4 = 392,
70/98 = 70 × 4/98 × 4 = 280/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
63/8 = 63 × 49/8 × 49 = 3087/392 - Subtract the two like fractions:
280/392 - 3087/392 = 280 - 3087/392 = -2807/392 - After reducing the fraction, the answer is -401/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/98-63/16 70/98-63/24 70/98-63/40 70/98-63/56