Subtract 27/70 from 42/6
1st number: 7 0/6, 2nd number: 27/70
42/6 - 27/70 is 463/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 6 × 35 = 210,
42/6 = 42 × 35/6 × 35 = 1470/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
27/70 = 27 × 3/70 × 3 = 81/210 - Subtract the two like fractions:
1470/210 - 81/210 = 1470 - 81/210 = 1389/210 - After reducing the fraction, the answer is 463/70
- In mixed form: 643/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/6-27/70 42/6-54/70 42/12-27/70 42/6-81/70 42/18-27/70 42/30-27/70