Subtract 9/84 from 42/48
42/48 - 9/84 is 43/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 84 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
42/48 = 42 × 7/48 × 7 = 294/336 - Likewise, for the 2nd fraction, since 84 × 4 = 336,
9/84 = 9 × 4/84 × 4 = 36/336 - Subtract the two like fractions:
294/336 - 36/336 = 294 - 36/336 = 258/336 - After reducing the fraction, the answer is 43/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/48-9/84 42/48-18/84 42/96-9/84 42/48-27/84 42/48-45/84 42/48-63/84