Subtract 70/45 from 35/50
1st number: 35/50, 2nd number: 1 25/45
35/50 - 70/45 is -77/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 45 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
35/50 = 35 × 9/50 × 9 = 315/450 - Likewise, for the 2nd fraction, since 45 × 10 = 450,
70/45 = 70 × 10/45 × 10 = 700/450 - Subtract the two like fractions:
315/450 - 700/450 = 315 - 700/450 = -385/450 - After reducing the fraction, the answer is -77/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/50-70/45 35/50-70/90