Subtract 42/72 from 30/14
1st number: 2 2/14, 2nd number: 42/72
30/14 - 42/72 is 131/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 14 × 36 = 504,
30/14 = 30 × 36/14 × 36 = 1080/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
42/72 = 42 × 7/72 × 7 = 294/504 - Subtract the two like fractions:
1080/504 - 294/504 = 1080 - 294/504 = 786/504 - After reducing the fraction, the answer is 131/84
- In mixed form: 147/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/14-42/72 30/14-84/72 30/28-42/72 90/14-42/72 30/42-42/72 30/70-42/72 30/98-42/72