Subtract 63/5 from 70/63
1st number: 1 7/63, 2nd number: 12 3/5
70/63 - 63/5 is -517/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 5 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
70/63 = 70 × 5/63 × 5 = 350/315 - Likewise, for the 2nd fraction, since 5 × 63 = 315,
63/5 = 63 × 63/5 × 63 = 3969/315 - Subtract the two like fractions:
350/315 - 3969/315 = 350 - 3969/315 = -3619/315 - After reducing the fraction, the answer is -517/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/63-63/10 70/63-63/15 70/63-63/25 70/63-63/35