Subtract 72/4 from 3/30
1st number: 3/30, 2nd number: 18 0/4
3/30 - 72/4 is -179/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 4 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
3/30 = 3 × 2/30 × 2 = 6/60 - Likewise, for the 2nd fraction, since 4 × 15 = 60,
72/4 = 72 × 15/4 × 15 = 1080/60 - Subtract the two like fractions:
6/60 - 1080/60 = 6 - 1080/60 = -1074/60 - After reducing the fraction, the answer is -179/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30-72/4 3/60-72/4 3/30-72/8 9/30-72/4 3/90-72/4 3/30-72/12 15/30-72/4 3/30-72/20 21/30-72/4 3/30-72/28