Subtract 50/90 from 7/5
1st number: 1 2/5, 2nd number: 50/90
7/5 - 50/90 is 38/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
7/5 = 7 × 18/5 × 18 = 126/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
50/90 = 50 × 1/90 × 1 = 50/90 - Subtract the two like fractions:
126/90 - 50/90 = 126 - 50/90 = 76/90 - After reducing the fraction, the answer is 38/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/5-50/90 7/10-50/90 21/5-50/90 7/15-50/90 35/5-50/90 7/25-50/90 49/5-50/90 7/35-50/90