Subtract 98/56 from 12/40
1st number: 12/40, 2nd number: 1 42/56
12/40 - 98/56 is -29/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
12/40 = 12 × 7/40 × 7 = 84/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
98/56 = 98 × 5/56 × 5 = 490/280 - Subtract the two like fractions:
84/280 - 490/280 = 84 - 490/280 = -406/280 - After reducing the fraction, the answer is -29/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/40-98/56 12/80-98/56 36/40-98/56 60/40-98/56 84/40-98/56