Subtract 1/20 from 16/70
16/70 - 1/20 is 5/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 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 20 × 7 = 140,
1/20 = 1 × 7/20 × 7 = 7/140 - Subtract the two like fractions:
32/140 - 7/140 = 32 - 7/140 = 25/140 - After reducing the fraction, the answer is 5/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/70-1/20 16/70-2/20 16/70-1/40 48/70-1/20 16/70-3/20 16/70-1/60 80/70-1/20 16/70-5/20 16/70-7/20