Subtract 21/80 from 75/35
1st number: 2 5/35, 2nd number: 21/80
75/35 - 21/80 is 1053/560.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 35 × 16 = 560,
75/35 = 75 × 16/35 × 16 = 1200/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
21/80 = 21 × 7/80 × 7 = 147/560 - Subtract the two like fractions:
1200/560 - 147/560 = 1200 - 147/560 = 1053/560 - In mixed form: 1493/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/35-42/80 75/70-21/80 75/35-63/80