Subtract 5/10 from 90/70
1st number: 1 20/70, 2nd number: 5/10
90/70 - 5/10 is 11/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
90/70 = 90 × 1/70 × 1 = 90/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
5/10 = 5 × 7/10 × 7 = 35/70 - Subtract the two like fractions:
90/70 - 35/70 = 90 - 35/70 = 55/70 - After reducing the fraction, the answer is 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70-5/20 90/70-15/10 90/70-5/30 90/70-25/10 90/70-5/50 90/70-35/10 90/70-5/70