Subtract 84/70 from 80/45
1st number: 1 35/45, 2nd number: 1 14/70
80/45 - 84/70 is 26/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
80/45 = 80 × 14/45 × 14 = 1120/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
84/70 = 84 × 9/70 × 9 = 756/630 - Subtract the two like fractions:
1120/630 - 756/630 = 1120 - 756/630 = 364/630 - After reducing the fraction, the answer is 26/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/90-84/70