Subtract 84/18 from 4/70
1st number: 4/70, 2nd number: 4 12/18
4/70 - 84/18 is -484/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
4/70 = 4 × 9/70 × 9 = 36/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
84/18 = 84 × 35/18 × 35 = 2940/630 - Subtract the two like fractions:
36/630 - 2940/630 = 36 - 2940/630 = -2904/630 - After reducing the fraction, the answer is -484/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/70-84/18 4/70-84/36 12/70-84/18 4/70-84/54 20/70-84/18 4/70-84/90 28/70-84/18