Subtract 30/42 from 84/56
1st number: 1 28/56, 2nd number: 30/42
84/56 - 30/42 is 11/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
84/56 = 84 × 3/56 × 3 = 252/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
30/42 = 30 × 4/42 × 4 = 120/168 - Subtract the two like fractions:
252/168 - 120/168 = 252 - 120/168 = 132/168 - After reducing the fraction, the answer is 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56-60/42 84/56-30/84 84/56-90/42