Subtract 27/28 from 70/9
1st number: 7 7/9, 2nd number: 27/28
70/9 - 27/28 is 1717/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
70/9 = 70 × 28/9 × 28 = 1960/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
27/28 = 27 × 9/28 × 9 = 243/252 - Subtract the two like fractions:
1960/252 - 243/252 = 1960 - 243/252 = 1717/252 - In mixed form: 6205/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9-54/28 70/18-27/28 70/9-27/56 70/9-81/28 70/27-27/28 70/9-27/84 70/45-27/28 70/63-27/28