Subtract 1/5 from 7/2
1st number: 3 1/2, 2nd number: 1/5
72 - 15 is 3310.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
72 = 7 × 52 × 5 = 3510 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
15 = 1 × 25 × 2 = 210 - Subtract the two like fractions:
3510 - 210 = 35 - 210 = 3310 - In mixed form: 3310
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2-1/5 7/2-2/5 7/4-1/5 7/2-1/10 21/2-1/5 7/2-3/5 7/6-1/5 7/2-1/15 35/2-1/5 7/10-1/5 7/2-1/25 49/2-1/5 7/2-7/5 7/14-1/5 7/2-1/35