Subtract 14/56 from 30/42
30/42 - 14/56 is 13/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
30/42 = 30 × 4/42 × 4 = 120/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
14/56 = 14 × 3/56 × 3 = 42/168 - Subtract the two like fractions:
120/168 - 42/168 = 120 - 42/168 = 78/168 - After reducing the fraction, the answer is 13/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42-14/56 30/42-28/56 30/84-14/56 90/42-14/56 30/42-42/56 30/42-70/56 30/42-98/56