Subtract 70/48 from 28/36
1st number: 28/36, 2nd number: 1 22/48
28/36 - 70/48 is -49/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 36 × 4 = 144,
28/36 = 28 × 4/36 × 4 = 112/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
70/48 = 70 × 3/48 × 3 = 210/144 - Subtract the two like fractions:
112/144 - 210/144 = 112 - 210/144 = -98/144 - After reducing the fraction, the answer is -49/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/36-70/48 28/72-70/48 28/36-70/96 84/36-70/48