Subtract 75/45 from 1/70
1st number: 1/70, 2nd number: 1 30/45
1/70 - 75/45 is -347/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 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 45 × 14 = 630,
75/45 = 75 × 14/45 × 14 = 1050/630 - Subtract the two like fractions:
9/630 - 1050/630 = 9 - 1050/630 = -1041/630 - After reducing the fraction, the answer is -347/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70-75/45 1/70-75/90 3/70-75/45 5/70-75/45 7/70-75/45