Subtract 2/10 from 35/42
35/42 - 2/10 is 19/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
35/42 = 35 × 5/42 × 5 = 175/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
2/10 = 2 × 21/10 × 21 = 42/210 - Subtract the two like fractions:
175/210 - 42/210 = 175 - 42/210 = 133/210 - After reducing the fraction, the answer is 19/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42-2/10 35/42-4/10 35/84-2/10 35/42-2/20 35/42-6/10 35/42-2/30 35/42-2/50 35/42-14/10 35/42-2/70