Subtract 9/7 from 70/27
1st number: 2 16/27, 2nd number: 1 2/7
70/27 - 9/7 is 247/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 7 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
70/27 = 70 × 7/27 × 7 = 490/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
9/7 = 9 × 27/7 × 27 = 243/189 - Subtract the two like fractions:
490/189 - 243/189 = 490 - 243/189 = 247/189 - In mixed form: 158/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/27-18/7 70/54-9/7 70/27-9/14 70/27-27/7 70/81-9/7 70/27-9/21 70/27-45/7 70/27-9/35 70/27-63/7 70/27-9/49