Subtract 96/42 from 21/10
1st number: 2 1/10, 2nd number: 2 12/42
21/10 - 96/42 is -13/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
21/10 = 21 × 21/10 × 21 = 441/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
96/42 = 96 × 5/42 × 5 = 480/210 - Subtract the two like fractions:
441/210 - 480/210 = 441 - 480/210 = -39/210 - After reducing the fraction, the answer is -13/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10-96/42 21/20-96/42 21/10-96/84 63/10-96/42 21/30-96/42 21/50-96/42 21/70-96/42