Subtract 9/14 from 72/40
1st number: 1 32/40, 2nd number: 9/14
72/40 - 9/14 is 81/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 14 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
72/40 = 72 × 7/40 × 7 = 504/280 - Likewise, for the 2nd fraction, since 14 × 20 = 280,
9/14 = 9 × 20/14 × 20 = 180/280 - Subtract the two like fractions:
504/280 - 180/280 = 504 - 180/280 = 324/280 - After reducing the fraction, the answer is 81/70
- In mixed form: 111/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40-18/14 72/80-9/14 72/40-9/28 72/40-27/14 72/40-9/42 72/40-45/14 72/40-9/70 72/40-63/14 72/40-9/98