Subtract 8/28 from 16/70
16/70 - 8/28 is -2/35.
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,
16/70 = 16 × 2/70 × 2 = 32/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
8/28 = 8 × 5/28 × 5 = 40/140 - Subtract the two like fractions:
32/140 - 40/140 = 32 - 40/140 = -8/140 - After reducing the fraction, the answer is -2/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/70-8/28 16/70-16/28 16/70-8/56 48/70-8/28 16/70-24/28 16/70-8/84 80/70-8/28 16/70-40/28 16/70-56/28