Subtract 8/12 from 70/42
1st number: 1 28/42, 2nd number: 8/12
70/42 - 8/12 is 1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
70/42 = 70 × 2/42 × 2 = 140/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
8/12 = 8 × 7/12 × 7 = 56/84 - Subtract the two like fractions:
140/84 - 56/84 = 140 - 56/84 = 84/84 - After reducing the fraction, the answer is 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42-16/12 70/84-8/12 70/42-8/24 70/42-24/12 70/42-8/36 70/42-40/12 70/42-8/60 70/42-56/12 70/42-8/84