Subtract 5/4 from 70/84
1st number: 70/84, 2nd number: 1 1/4
70/84 - 5/4 is -5/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
70/84 = 70 × 1/84 × 1 = 70/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
5/4 = 5 × 21/4 × 21 = 105/84 - Subtract the two like fractions:
70/84 - 105/84 = 70 - 105/84 = -35/84 - After reducing the fraction, the answer is -5/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/84-10/4 70/84-5/8 70/84-15/4 70/84-5/12 70/84-25/4 70/84-5/20 70/84-35/4 70/84-5/28