Subtract 18/49 from 70/9
1st number: 7 7/9, 2nd number: 18/49
70/9 - 18/49 is 3268/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 9 × 49 = 441,
70/9 = 70 × 49/9 × 49 = 3430/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
18/49 = 18 × 9/49 × 9 = 162/441 - Subtract the two like fractions:
3430/441 - 162/441 = 3430 - 162/441 = 3268/441 - In mixed form: 7181/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9-36/49 70/18-18/49 70/9-18/98 70/9-54/49 70/27-18/49 70/9-90/49 70/45-18/49 70/63-18/49