Subtract 56/8 from 49/42
1st number: 1 7/42, 2nd number: 7 0/8
49/42 - 56/8 is -35/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
49/42 = 49 × 4/42 × 4 = 196/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
56/8 = 56 × 21/8 × 21 = 1176/168 - Subtract the two like fractions:
196/168 - 1176/168 = 196 - 1176/168 = -980/168 - After reducing the fraction, the answer is -35/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/42-56/8 49/84-56/8 49/42-56/16 49/42-56/24 49/42-56/40