Subtract 45/9 from 84/70
1st number: 1 14/70, 2nd number: 5 0/9
84/70 - 45/9 is -19/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
84/70 = 84 × 9/70 × 9 = 756/630 - Likewise, for the 2nd fraction, since 9 × 70 = 630,
45/9 = 45 × 70/9 × 70 = 3150/630 - Subtract the two like fractions:
756/630 - 3150/630 = 756 - 3150/630 = -2394/630 - After reducing the fraction, the answer is -19/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70-90/9 84/70-45/18 84/70-45/27 84/70-45/63