Subtract 10/28 from 7/70
7/70 - 10/28 is -9/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
7/70 = 7 × 2/70 × 2 = 14/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
10/28 = 10 × 5/28 × 5 = 50/140 - Subtract the two like fractions:
14/140 - 50/140 = 14 - 50/140 = -36/140 - After reducing the fraction, the answer is -9/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/70-10/28 7/70-20/28 7/70-10/56 21/70-10/28 7/70-30/28 7/70-10/84 35/70-10/28 7/70-50/28 49/70-10/28 7/70-70/28