Subtract 35/80 from 45/28
1st number: 1 17/28, 2nd number: 35/80
45/28 - 35/80 is 131/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
45/28 = 45 × 20/28 × 20 = 900/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
35/80 = 35 × 7/80 × 7 = 245/560 - Subtract the two like fractions:
900/560 - 245/560 = 900 - 245/560 = 655/560 - After reducing the fraction, the answer is 131/112
- In mixed form: 119/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28-35/80 45/28-70/80 45/56-35/80 45/84-35/80