Subtract 50/28 from 70/45
1st number: 1 25/45, 2nd number: 1 22/28
70/45 - 50/28 is -29/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
70/45 = 70 × 28/45 × 28 = 1960/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
50/28 = 50 × 45/28 × 45 = 2250/1260 - Subtract the two like fractions:
1960/1260 - 2250/1260 = 1960 - 2250/1260 = -290/1260 - After reducing the fraction, the answer is -29/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90-50/28 70/45-50/56 70/45-50/84