Subtract 2/72 from 30/9
1st number: 3 3/9, 2nd number: 2/72
30/9 - 2/72 is 119/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
30/9 = 30 × 8/9 × 8 = 240/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
2/72 = 2 × 1/72 × 1 = 2/72 - Subtract the two like fractions:
240/72 - 2/72 = 240 - 2/72 = 238/72 - After reducing the fraction, the answer is 119/36
- In mixed form: 311/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9-2/72 30/9-4/72 30/18-2/72 90/9-2/72 30/9-6/72 30/27-2/72 30/9-10/72 30/45-2/72 30/9-14/72 30/63-2/72