Subtract 70/35 from 1/40
1st number: 1/40, 2nd number: 2 0/35
1/40 - 70/35 is -79/40.
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,
1/40 = 1 × 7/40 × 7 = 7/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
70/35 = 70 × 8/35 × 8 = 560/280 - Subtract the two like fractions:
7/280 - 560/280 = 7 - 560/280 = -553/280 - After reducing the fraction, the answer is -79/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40-70/35 1/80-70/35 3/40-70/35 5/40-70/35 7/40-70/35