Subtract 36/72 from 28/35
28/35 - 36/72 is 3/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 35 × 72 = 2520,
28/35 = 28 × 72/35 × 72 = 2016/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
36/72 = 36 × 35/72 × 35 = 1260/2520 - Subtract the two like fractions:
2016/2520 - 1260/2520 = 2016 - 1260/2520 = 756/2520 - After reducing the fraction, the answer is 3/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/35-36/72 28/70-36/72 84/35-36/72