Subtract 63/18 from 70/54
1st number: 1 16/54, 2nd number: 3 9/18
70/54 - 63/18 is -119/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
70/54 = 70 × 1/54 × 1 = 70/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
63/18 = 63 × 3/18 × 3 = 189/54 - Subtract the two like fractions:
70/54 - 189/54 = 70 - 189/54 = -119/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/54-63/36 70/54-63/54 70/54-63/90