Subtract 70/35 from 49/40
1st number: 1 9/40, 2nd number: 2 0/35
49/40 - 70/35 is -31/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
49/40 = 49 × 7/40 × 7 = 343/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
70/35 = 70 × 8/35 × 8 = 560/280 - Subtract the two like fractions:
343/280 - 560/280 = 343 - 560/280 = -217/280 - After reducing the fraction, the answer is -31/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/40-70/35 49/80-70/35