Subtract 70/28 from 7/35
1st number: 7/35, 2nd number: 2 14/28
7/35 - 70/28 is -23/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
7/35 = 7 × 4/35 × 4 = 28/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
70/28 = 70 × 5/28 × 5 = 350/140 - Subtract the two like fractions:
28/140 - 350/140 = 28 - 350/140 = -322/140 - After reducing the fraction, the answer is -23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/35-70/28 7/70-70/28 7/35-70/56 21/35-70/28 7/35-70/84 49/35-70/28