Subtract 15/48 from 21/10
1st number: 2 1/10, 2nd number: 15/48
21/10 - 15/48 is 143/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 10 × 24 = 240,
21/10 = 21 × 24/10 × 24 = 504/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
15/48 = 15 × 5/48 × 5 = 75/240 - Subtract the two like fractions:
504/240 - 75/240 = 504 - 75/240 = 429/240 - After reducing the fraction, the answer is 143/80
- In mixed form: 163/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10-15/48 21/10-30/48 21/20-15/48 21/10-15/96 63/10-15/48 21/10-45/48 21/30-15/48 21/10-75/48 21/50-15/48 21/70-15/48