Subtract 63/18 from 1/70
1st number: 1/70, 2nd number: 3 9/18
1/70 - 63/18 is -122/35.
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,
1/70 = 1 × 9/70 × 9 = 9/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
63/18 = 63 × 35/18 × 35 = 2205/630 - Subtract the two like fractions:
9/630 - 2205/630 = 9 - 2205/630 = -2196/630 - After reducing the fraction, the answer is -122/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70-63/18 1/70-63/36 3/70-63/18 1/70-63/54 5/70-63/18 1/70-63/90 7/70-63/18