Subtract 7/40 from 48/18
1st number: 2 12/18, 2nd number: 7/40
48/18 - 7/40 is 299/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
48/18 = 48 × 20/18 × 20 = 960/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
7/40 = 7 × 9/40 × 9 = 63/360 - Subtract the two like fractions:
960/360 - 63/360 = 960 - 63/360 = 897/360 - After reducing the fraction, the answer is 299/120
- In mixed form: 259/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/18-7/40 48/18-14/40 48/36-7/40 48/18-7/80 48/18-21/40 48/54-7/40 48/18-35/40 48/90-7/40 48/18-49/40