Subtract 42/90 from 30/14
1st number: 2 2/14, 2nd number: 42/90
30/14 - 42/90 is 176/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
30/14 = 30 × 45/14 × 45 = 1350/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
42/90 = 42 × 7/90 × 7 = 294/630 - Subtract the two like fractions:
1350/630 - 294/630 = 1350 - 294/630 = 1056/630 - After reducing the fraction, the answer is 176/105
- In mixed form: 171/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/14-42/90 30/14-84/90 30/28-42/90 90/14-42/90 30/42-42/90 30/70-42/90 30/98-42/90