Subtract 56/30 from 42/56
1st number: 42/56, 2nd number: 1 26/30
42/56 - 56/30 is -67/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 30 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
42/56 = 42 × 15/56 × 15 = 630/840 - Likewise, for the 2nd fraction, since 30 × 28 = 840,
56/30 = 56 × 28/30 × 28 = 1568/840 - Subtract the two like fractions:
630/840 - 1568/840 = 630 - 1568/840 = -938/840 - After reducing the fraction, the answer is -67/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56-56/30 42/56-56/60 42/56-56/90