Subtract 27/32 from 45/42
1st number: 1 3/42, 2nd number: 27/32
45/42 - 27/32 is 51/224.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 42 × 16 = 672,
45/42 = 45 × 16/42 × 16 = 720/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
27/32 = 27 × 21/32 × 21 = 567/672 - Subtract the two like fractions:
720/672 - 567/672 = 720 - 567/672 = 153/672 - After reducing the fraction, the answer is 51/224
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42-27/32 45/42-54/32 45/84-27/32 45/42-27/64 45/42-81/32 45/42-27/96