Subtract 16/12 from 21/10
1st number: 2 1/10, 2nd number: 1 4/12
21/10 - 16/12 is 23/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
21/10 = 21 × 6/10 × 6 = 126/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
16/12 = 16 × 5/12 × 5 = 80/60 - Subtract the two like fractions:
126/60 - 80/60 = 126 - 80/60 = 46/60 - After reducing the fraction, the answer is 23/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10-16/12 21/10-32/12 21/20-16/12 21/10-16/24 63/10-16/12 21/10-48/12 21/30-16/12 21/10-16/36 21/10-80/12 21/50-16/12 21/10-16/60 21/70-16/12 21/10-16/84