Subtract 40/42 from 80/36
1st number: 2 8/36, 2nd number: 40/42
80/36 - 40/42 is 80/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 42 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
80/36 = 80 × 7/36 × 7 = 560/252 - Likewise, for the 2nd fraction, since 42 × 6 = 252,
40/42 = 40 × 6/42 × 6 = 240/252 - Subtract the two like fractions:
560/252 - 240/252 = 560 - 240/252 = 320/252 - After reducing the fraction, the answer is 80/63
- In mixed form: 117/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/36-80/42 80/72-40/42 80/36-40/84