Subtract 42/80 from 80/28
1st number: 2 24/28, 2nd number: 42/80
80/28 - 42/80 is 653/280.
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,
80/28 = 80 × 20/28 × 20 = 1600/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
42/80 = 42 × 7/80 × 7 = 294/560 - Subtract the two like fractions:
1600/560 - 294/560 = 1600 - 294/560 = 1306/560 - After reducing the fraction, the answer is 653/280
- In mixed form: 293/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28-84/80 80/56-42/80 80/84-42/80