Subtract 42/10 from 12/48
1st number: 12/48, 2nd number: 4 2/10
12/48 - 42/10 is -79/20.
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,
12/48 = 12 × 5/48 × 5 = 60/240 - Likewise, for the 2nd fraction, since 10 × 24 = 240,
42/10 = 42 × 24/10 × 24 = 1008/240 - Subtract the two like fractions:
60/240 - 1008/240 = 60 - 1008/240 = -948/240 - After reducing the fraction, the answer is -79/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/48-42/10 12/48-84/10 12/96-42/10 12/48-42/20 36/48-42/10 12/48-42/30 60/48-42/10 12/48-42/50 84/48-42/10 12/48-42/70