Subtract 18/70 from 16/28
16/28 - 18/70 is 11/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
16/28 = 16 × 5/28 × 5 = 80/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
18/70 = 18 × 2/70 × 2 = 36/140 - Subtract the two like fractions:
80/140 - 36/140 = 80 - 36/140 = 44/140 - After reducing the fraction, the answer is 11/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/28-18/70 16/28-36/70 16/56-18/70 48/28-18/70 16/28-54/70 16/84-18/70 80/28-18/70 16/28-90/70