Subtract 90/48 from 4/84
1st number: 4/84, 2nd number: 1 42/48
4/84 - 90/48 is -307/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
4/84 = 4 × 4/84 × 4 = 16/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
90/48 = 90 × 7/48 × 7 = 630/336 - Subtract the two like fractions:
16/336 - 630/336 = 16 - 630/336 = -614/336 - After reducing the fraction, the answer is -307/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84-90/48 4/84-90/96 12/84-90/48 20/84-90/48 28/84-90/48