Subtract 35/70 from 42/2
1st number: 21 0/2, 2nd number: 35/70
42/2 - 35/70 is 41/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
42/2 = 42 × 35/2 × 35 = 1470/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
35/70 = 35 × 1/70 × 1 = 35/70 - Subtract the two like fractions:
1470/70 - 35/70 = 1470 - 35/70 = 1435/70 - After reducing the fraction, the answer is 41/2
- In mixed form: 201/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2-35/70 42/4-35/70 42/6-35/70 42/10-35/70 42/14-35/70