Subtract 42/24 from 48/84
1st number: 48/84, 2nd number: 1 18/24
48/84 - 42/24 is -33/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
48/84 = 48 × 2/84 × 2 = 96/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
42/24 = 42 × 7/24 × 7 = 294/168 - Subtract the two like fractions:
96/168 - 294/168 = 96 - 294/168 = -198/168 - After reducing the fraction, the answer is -33/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/84-42/24 48/84-84/24 48/84-42/48 48/84-42/72