Subtract 12/54 from 70/63
1st number: 1 7/63, 2nd number: 12/54
70/63 - 12/54 is 8/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 63 × 6 = 378,
70/63 = 70 × 6/63 × 6 = 420/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
12/54 = 12 × 7/54 × 7 = 84/378 - Subtract the two like fractions:
420/378 - 84/378 = 420 - 84/378 = 336/378 - After reducing the fraction, the answer is 8/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/63-24/54 70/63-36/54 70/63-60/54 70/63-84/54