Subtract 3/48 from 21/35
21/35 - 3/48 is 43/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 48 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 35 × 48 = 1680,
21/35 = 21 × 48/35 × 48 = 1008/1680 - Likewise, for the 2nd fraction, since 48 × 35 = 1680,
3/48 = 3 × 35/48 × 35 = 105/1680 - Subtract the two like fractions:
1008/1680 - 105/1680 = 1008 - 105/1680 = 903/1680 - After reducing the fraction, the answer is 43/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35-3/48 21/35-6/48 21/70-3/48 21/35-3/96 63/35-3/48 21/35-9/48 21/35-15/48 21/35-21/48