Subtract 24/40 from 42/7
1st number: 6 0/7, 2nd number: 24/40
42/7 - 24/40 is 27/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
42/7 = 42 × 40/7 × 40 = 1680/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
24/40 = 24 × 7/40 × 7 = 168/280 - Subtract the two like fractions:
1680/280 - 168/280 = 1680 - 168/280 = 1512/280 - After reducing the fraction, the answer is 27/5
- In mixed form: 52/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/7-24/40 42/7-48/40 42/14-24/40 42/7-24/80 42/7-72/40 42/21-24/40 42/35-24/40 42/49-24/40