Subtract 2/18 from 63/70
63/70 - 2/18 is 71/90.
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,
63/70 = 63 × 9/70 × 9 = 567/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
2/18 = 2 × 35/18 × 35 = 70/630 - Subtract the two like fractions:
567/630 - 70/630 = 567 - 70/630 = 497/630 - After reducing the fraction, the answer is 71/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/70-4/18 63/70-2/36 63/70-6/18 63/70-2/54 63/70-10/18 63/70-2/90 63/70-14/18