Subtract 28/18 from 70/45
1st number: 1 25/45, 2nd number: 1 10/18
70/45 - 28/18 is 0/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
70/45 = 70 × 2/45 × 2 = 140/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
28/18 = 28 × 5/18 × 5 = 140/90 - Subtract the two like fractions:
140/90 - 140/90 = 140 - 140/90 = 0/90 - The answer is 0
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/45-56/18 70/90-28/18 70/45-28/36 70/45-84/18 70/45-28/54 70/45-28/90