Subtract 90/48 from 80/4
1st number: 20 0/4, 2nd number: 1 42/48
80/4 - 90/48 is 145/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 48 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 4 × 12 = 48,
80/4 = 80 × 12/4 × 12 = 960/48 - Likewise, for the 2nd fraction, since 48 × 1 = 48,
90/48 = 90 × 1/48 × 1 = 90/48 - Subtract the two like fractions:
960/48 - 90/48 = 960 - 90/48 = 870/48 - After reducing the fraction, the answer is 145/8
- In mixed form: 181/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8-90/48 80/4-90/96 80/12-90/48 80/20-90/48 80/28-90/48