Subtract 70/9 from 40/48
1st number: 40/48, 2nd number: 7 7/9
40/48 - 70/9 is -125/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
40/48 = 40 × 3/48 × 3 = 120/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
70/9 = 70 × 16/9 × 16 = 1120/144 - Subtract the two like fractions:
120/144 - 1120/144 = 120 - 1120/144 = -1000/144 - After reducing the fraction, the answer is -125/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/48-70/9 40/96-70/9 40/48-70/18 40/48-70/27 40/48-70/45 40/48-70/63