Subtract 56/42 from 48/27
1st number: 1 21/27, 2nd number: 1 14/42
48/27 - 56/42 is 4/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 27 × 14 = 378,
48/27 = 48 × 14/27 × 14 = 672/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
56/42 = 56 × 9/42 × 9 = 504/378 - Subtract the two like fractions:
672/378 - 504/378 = 672 - 504/378 = 168/378 - After reducing the fraction, the answer is 4/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/27-56/42 48/54-56/42 48/27-56/84 48/81-56/42