Subtract 7/90 from 7/5
1st number: 1 2/5, 2nd number: 7/90
7/5 - 7/90 is 119/90.
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,
7/90 = 7 × 1/90 × 1 = 7/90 - Subtract the two like fractions:
126/90 - 7/90 = 126 - 7/90 = 119/90 - In mixed form: 129/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/5-7/90 7/5-14/90 7/10-7/90 21/5-7/90 7/5-21/90 7/15-7/90 35/5-7/90 7/5-35/90 7/25-7/90 49/5-7/90 7/5-49/90 7/35-7/90