Subtract 10/48 from 21/30
21/30 - 10/48 is 59/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
21/30 = 21 × 8/30 × 8 = 168/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
10/48 = 10 × 5/48 × 5 = 50/240 - Subtract the two like fractions:
168/240 - 50/240 = 168 - 50/240 = 118/240 - After reducing the fraction, the answer is 59/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/30-10/48 21/30-20/48 21/60-10/48 21/30-10/96 63/30-10/48 21/30-30/48 21/90-10/48 21/30-50/48 21/30-70/48