Subtract 4/7 from 70/9
1st number: 7 7/9, 2nd number: 4/7
70/9 - 4/7 is 454/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 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 7 × 9 = 63,
4/7 = 4 × 9/7 × 9 = 36/63 - Subtract the two like fractions:
490/63 - 36/63 = 490 - 36/63 = 454/63 - In mixed form: 713/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9-8/7 70/18-4/7 70/9-4/14 70/9-12/7 70/27-4/7 70/9-4/21 70/9-20/7 70/45-4/7 70/9-4/35 70/9-28/7 70/63-4/7 70/9-4/49