Subtract 27/18 from 98/70
1st number: 1 28/70, 2nd number: 1 9/18
98/70 - 27/18 is -1/10.
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,
98/70 = 98 × 9/70 × 9 = 882/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
27/18 = 27 × 35/18 × 35 = 945/630 - Subtract the two like fractions:
882/630 - 945/630 = 882 - 945/630 = -63/630 - After reducing the fraction, the answer is -1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/70-54/18 98/70-27/36 98/70-81/18 98/70-27/54 98/70-27/90