Subtract 48/21 from 7/2
1st number: 3 1/2, 2nd number: 2 6/21
7/2 - 48/21 is 17/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
7/2 = 7 × 21/2 × 21 = 147/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
48/21 = 48 × 2/21 × 2 = 96/42 - Subtract the two like fractions:
147/42 - 96/42 = 147 - 96/42 = 51/42 - After reducing the fraction, the answer is 17/14
- In mixed form: 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2-48/21 7/2-96/21 7/4-48/21 7/2-48/42 21/2-48/21 7/6-48/21 7/2-48/63 35/2-48/21 7/10-48/21 49/2-48/21 7/14-48/21