Subtract 18/30 from 72/14
1st number: 5 2/14, 2nd number: 18/30
72/14 - 18/30 is 159/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
72/14 = 72 × 15/14 × 15 = 1080/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
18/30 = 18 × 7/30 × 7 = 126/210 - Subtract the two like fractions:
1080/210 - 126/210 = 1080 - 126/210 = 954/210 - After reducing the fraction, the answer is 159/35
- In mixed form: 419/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/14-36/30 72/28-18/30 72/14-18/60 72/14-54/30 72/42-18/30 72/14-18/90 72/14-90/30 72/70-18/30 72/98-18/30