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