Subtract 12/90 from 16/28
16/28 - 12/90 is 46/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
16/28 = 16 × 45/28 × 45 = 720/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
12/90 = 12 × 14/90 × 14 = 168/1260 - Subtract the two like fractions:
720/1260 - 168/1260 = 720 - 168/1260 = 552/1260 - After reducing the fraction, the answer is 46/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/28-12/90 16/28-24/90 16/56-12/90 48/28-12/90 16/28-36/90 16/84-12/90 80/28-12/90 16/28-60/90 16/28-84/90