Subtract 24/28 from 36/70
36/70 - 24/28 is -12/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
36/70 = 36 × 2/70 × 2 = 72/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
24/28 = 24 × 5/28 × 5 = 120/140 - Subtract the two like fractions:
72/140 - 120/140 = 72 - 120/140 = -48/140 - After reducing the fraction, the answer is -12/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70-24/28 36/70-48/28 36/70-24/56 36/70-72/28 36/70-24/84