Subtract 40/42 from 24/9
1st number: 2 6/9, 2nd number: 40/42
24/9 - 40/42 is 12/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
24/9 = 24 × 14/9 × 14 = 336/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
40/42 = 40 × 3/42 × 3 = 120/126 - Subtract the two like fractions:
336/126 - 120/126 = 336 - 120/126 = 216/126 - After reducing the fraction, the answer is 12/7
- In mixed form: 15/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/9-40/42 24/9-80/42 24/18-40/42 24/9-40/84 72/9-40/42 24/27-40/42 24/45-40/42 24/63-40/42