Subtract 40/48 from 35/45
35/45 - 40/48 is -1/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 48 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
35/45 = 35 × 16/45 × 16 = 560/720 - Likewise, for the 2nd fraction, since 48 × 15 = 720,
40/48 = 40 × 15/48 × 15 = 600/720 - Subtract the two like fractions:
560/720 - 600/720 = 560 - 600/720 = -40/720 - After reducing the fraction, the answer is -1/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/45-40/48 35/45-80/48 35/90-40/48 35/45-40/96