Subtract 42/90 from 14/2
1st number: 7 0/2, 2nd number: 42/90
14/2 - 42/90 is 98/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
14/2 = 14 × 45/2 × 45 = 630/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90 - Subtract the two like fractions:
630/90 - 42/90 = 630 - 42/90 = 588/90 - After reducing the fraction, the answer is 98/15
- In mixed form: 68/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/2-42/90 14/2-84/90 14/4-42/90 42/2-42/90 14/6-42/90 70/2-42/90 14/10-42/90 98/2-42/90