Subtract 27/16 from 45/15
1st number: 3 0/15, 2nd number: 1 11/16
45/15 - 27/16 is 21/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
45/15 = 45 × 16/15 × 16 = 720/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
27/16 = 27 × 15/16 × 15 = 405/240 - Subtract the two like fractions:
720/240 - 405/240 = 720 - 405/240 = 315/240 - After reducing the fraction, the answer is 21/16
- In mixed form: 15/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15-27/16 45/15-54/16 45/30-27/16 45/15-27/32 45/15-81/16 45/15-27/48 45/75-27/16 45/15-27/80