Subtract 14/20 from 90/48
1st number: 1 42/48, 2nd number: 14/20
90/48 - 14/20 is 47/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 20 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
90/48 = 90 × 5/48 × 5 = 450/240 - Likewise, for the 2nd fraction, since 20 × 12 = 240,
14/20 = 14 × 12/20 × 12 = 168/240 - Subtract the two like fractions:
450/240 - 168/240 = 450 - 168/240 = 282/240 - After reducing the fraction, the answer is 47/40
- In mixed form: 17/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/48-28/20 90/96-14/20 90/48-14/40 90/48-42/20 90/48-14/60 90/48-70/20 90/48-98/20