Subtract 21/10 from 3/48
1st number: 3/48, 2nd number: 2 1/10
3/48 - 21/10 is -163/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 10 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
3/48 = 3 × 5/48 × 5 = 15/240 - Likewise, for the 2nd fraction, since 10 × 24 = 240,
21/10 = 21 × 24/10 × 24 = 504/240 - Subtract the two like fractions:
15/240 - 504/240 = 15 - 504/240 = -489/240 - After reducing the fraction, the answer is -163/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/48-21/10 3/48-42/10 3/96-21/10 3/48-21/20 9/48-21/10 3/48-63/10 3/48-21/30 15/48-21/10 3/48-21/50 21/48-21/10 3/48-21/70