Subtract 98/14 from 70/20
1st number: 3 10/20, 2nd number: 7 0/14
70/20 - 98/14 is -7/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 14 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
70/20 = 70 × 7/20 × 7 = 490/140 - Likewise, for the 2nd fraction, since 14 × 10 = 140,
98/14 = 98 × 10/14 × 10 = 980/140 - Subtract the two like fractions:
490/140 - 980/140 = 490 - 980/140 = -490/140 - After reducing the fraction, the answer is -7/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40-98/14 70/20-98/28 70/60-98/14 70/20-98/42 70/20-98/70