Subtract 35/48 from 42/54
42/54 - 35/48 is 7/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 48 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 54 × 8 = 432,
42/54 = 42 × 8/54 × 8 = 336/432 - Likewise, for the 2nd fraction, since 48 × 9 = 432,
35/48 = 35 × 9/48 × 9 = 315/432 - Subtract the two like fractions:
336/432 - 315/432 = 336 - 315/432 = 21/432 - After reducing the fraction, the answer is 7/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/54-35/48 42/54-70/48 42/54-35/96