Subtract 30/18 from 70/27
1st number: 2 16/27, 2nd number: 1 12/18
70/27 - 30/18 is 25/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
70/27 = 70 × 2/27 × 2 = 140/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
30/18 = 30 × 3/18 × 3 = 90/54 - Subtract the two like fractions:
140/54 - 90/54 = 140 - 90/54 = 50/54 - After reducing the fraction, the answer is 25/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/27-60/18 70/54-30/18 70/27-30/36 70/27-90/18 70/81-30/18 70/27-30/54 70/27-30/90