Subtract 6/30 from 42/7
1st number: 6 0/7, 2nd number: 6/30
42/7 - 6/30 is 29/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
42/7 = 42 × 30/7 × 30 = 1260/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
6/30 = 6 × 7/30 × 7 = 42/210 - Subtract the two like fractions:
1260/210 - 42/210 = 1260 - 42/210 = 1218/210 - After reducing the fraction, the answer is 29/5
- In mixed form: 54/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/7-6/30 42/7-12/30 42/14-6/30 42/7-6/60 42/7-18/30 42/21-6/30 42/7-6/90 42/35-6/30 42/7-42/30 42/49-6/30