Subtract 9/28 from 72/16
1st number: 4 8/16, 2nd number: 9/28
72/16 - 9/28 is 117/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 28 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
72/16 = 72 × 7/16 × 7 = 504/112 - Likewise, for the 2nd fraction, since 28 × 4 = 112,
9/28 = 9 × 4/28 × 4 = 36/112 - Subtract the two like fractions:
504/112 - 36/112 = 504 - 36/112 = 468/112 - After reducing the fraction, the answer is 117/28
- In mixed form: 45/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/16-18/28 72/32-9/28 72/16-9/56 72/16-27/28 72/48-9/28 72/16-9/84 72/16-45/28 72/80-9/28 72/16-63/28