Subtract 72/30 from 9/14
1st number: 9/14, 2nd number: 2 12/30
9/14 - 72/30 is -123/70.
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,
9/14 = 9 × 15/14 × 15 = 135/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
72/30 = 72 × 7/30 × 7 = 504/210 - Subtract the two like fractions:
135/210 - 504/210 = 135 - 504/210 = -369/210 - After reducing the fraction, the answer is -123/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/14-72/30 9/28-72/30 9/14-72/60 27/14-72/30 9/42-72/30 9/14-72/90 45/14-72/30 9/70-72/30 63/14-72/30 9/98-72/30