Subtract 70/54 from 30/36
1st number: 30/36, 2nd number: 1 16/54
30/36 - 70/54 is -25/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 36 × 3 = 108,
30/36 = 30 × 3/36 × 3 = 90/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
70/54 = 70 × 2/54 × 2 = 140/108 - Subtract the two like fractions:
90/108 - 140/108 = 90 - 140/108 = -50/108 - After reducing the fraction, the answer is -25/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/36-70/54 30/72-70/54 90/36-70/54