Subtract 30/72 from 5/2
1st number: 2 1/2, 2nd number: 30/72
5/2 - 30/72 is 25/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 2 × 36 = 72,
5/2 = 5 × 36/2 × 36 = 180/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
30/72 = 30 × 1/72 × 1 = 30/72 - Subtract the two like fractions:
180/72 - 30/72 = 180 - 30/72 = 150/72 - After reducing the fraction, the answer is 25/12
- In mixed form: 21/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/2-30/72 5/2-60/72 5/4-30/72 15/2-30/72 5/2-90/72 5/6-30/72 25/2-30/72 5/10-30/72 35/2-30/72 5/14-30/72