Subtract 28/20 from 24/35
1st number: 24/35, 2nd number: 1 8/20
24/35 - 28/20 is -5/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
24/35 = 24 × 4/35 × 4 = 96/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
28/20 = 28 × 7/20 × 7 = 196/140 - Subtract the two like fractions:
96/140 - 196/140 = 96 - 196/140 = -100/140 - After reducing the fraction, the answer is -5/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/35-28/20 24/35-56/20 24/70-28/20 24/35-28/40 72/35-28/20 24/35-84/20 24/35-28/60