Subtract 40/63 from 70/9
1st number: 7 7/9, 2nd number: 40/63
70/9 - 40/63 is 50/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
70/9 = 70 × 7/9 × 7 = 490/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
40/63 = 40 × 1/63 × 1 = 40/63 - Subtract the two like fractions:
490/63 - 40/63 = 490 - 40/63 = 450/63 - After reducing the fraction, the answer is 50/7
- In mixed form: 71/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9-80/63 70/18-40/63 70/27-40/63 70/45-40/63 70/63-40/63