Subtract 30/27 from 70/30
1st number: 2 10/30, 2nd number: 1 3/27
70/30 - 30/27 is 11/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
70/30 = 70 × 9/30 × 9 = 630/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
30/27 = 30 × 10/27 × 10 = 300/270 - Subtract the two like fractions:
630/270 - 300/270 = 630 - 300/270 = 330/270 - After reducing the fraction, the answer is 11/9
- In mixed form: 12/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30-60/27 70/60-30/27 70/30-30/54 70/30-90/27 70/90-30/27 70/30-30/81