Subtract 21/72 from 49/16
1st number: 3 1/16, 2nd number: 21/72
49/16 - 21/72 is 133/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 72 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
49/16 = 49 × 9/16 × 9 = 441/144 - Likewise, for the 2nd fraction, since 72 × 2 = 144,
21/72 = 21 × 2/72 × 2 = 42/144 - Subtract the two like fractions:
441/144 - 42/144 = 441 - 42/144 = 399/144 - After reducing the fraction, the answer is 133/48
- In mixed form: 237/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/16-21/72 49/16-42/72 49/32-21/72 49/16-63/72 49/48-21/72 49/80-21/72