Subtract 20/32 from 45/7
1st number: 6 3/7, 2nd number: 20/32
45/7 - 20/32 is 325/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 32 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 7 × 32 = 224,
45/7 = 45 × 32/7 × 32 = 1440/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
20/32 = 20 × 7/32 × 7 = 140/224 - Subtract the two like fractions:
1440/224 - 140/224 = 1440 - 140/224 = 1300/224 - After reducing the fraction, the answer is 325/56
- In mixed form: 545/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7-20/32 45/7-40/32 45/14-20/32 45/7-20/64 45/7-60/32 45/21-20/32 45/7-20/96 45/35-20/32 45/49-20/32