Subtract 70/27 from 70/30
1st number: 2 10/30, 2nd number: 2 16/27
70/30 - 70/27 is -7/27.
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,
70/27 = 70 × 10/27 × 10 = 700/270 - Subtract the two like fractions:
630/270 - 700/270 = 630 - 700/270 = -70/270 - After reducing the fraction, the answer is -7/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/60-70/27 70/30-70/54 70/90-70/27 70/30-70/81