Subtract 30/4 from 3/15
1st number: 3/15, 2nd number: 7 2/4
3/15 - 30/4 is -73/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
3/15 = 3 × 4/15 × 4 = 12/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
30/4 = 30 × 15/4 × 15 = 450/60 - Subtract the two like fractions:
12/60 - 450/60 = 12 - 450/60 = -438/60 - After reducing the fraction, the answer is -73/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15-30/4 3/15-60/4 3/30-30/4 3/15-30/8 9/15-30/4 3/15-90/4 3/45-30/4 3/15-30/12 3/75-30/4 3/15-30/20 21/15-30/4 3/15-30/28