Subtract 30/8 from 72/14
1st number: 5 2/14, 2nd number: 3 6/8
72/14 - 30/8 is 39/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 14 × 4 = 56,
72/14 = 72 × 4/14 × 4 = 288/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
30/8 = 30 × 7/8 × 7 = 210/56 - Subtract the two like fractions:
288/56 - 210/56 = 288 - 210/56 = 78/56 - After reducing the fraction, the answer is 39/28
- In mixed form: 111/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/14-60/8 72/28-30/8 72/14-30/16 72/14-90/8 72/42-30/8 72/14-30/24 72/70-30/8 72/14-30/40 72/98-30/8 72/14-30/56