Subtract 42/30 from 42/14
1st number: 3 0/14, 2nd number: 1 12/30
42/14 - 42/30 is 8/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
42/14 = 42 × 15/14 × 15 = 630/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
42/30 = 42 × 7/30 × 7 = 294/210 - Subtract the two like fractions:
630/210 - 294/210 = 630 - 294/210 = 336/210 - After reducing the fraction, the answer is 8/5
- In mixed form: 13/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14-42/30 42/14-84/30 42/28-42/30 42/14-42/60 42/14-42/90 42/70-42/30 42/98-42/30