Subtract 21/35 from 40/8
1st number: 5 0/8, 2nd number: 21/35
40/8 - 21/35 is 22/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
40/8 = 40 × 35/8 × 35 = 1400/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
21/35 = 21 × 8/35 × 8 = 168/280 - Subtract the two like fractions:
1400/280 - 168/280 = 1400 - 168/280 = 1232/280 - After reducing the fraction, the answer is 22/5
- In mixed form: 42/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8-21/35 40/8-42/35 40/16-21/35 40/8-21/70 40/8-63/35 40/24-21/35 40/56-21/35