Subtract 28/70 from 49/45
1st number: 1 4/45, 2nd number: 28/70
49/45 - 28/70 is 31/45.
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,
49/45 = 49 × 14/45 × 14 = 686/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
28/70 = 28 × 9/70 × 9 = 252/630 - Subtract the two like fractions:
686/630 - 252/630 = 686 - 252/630 = 434/630 - After reducing the fraction, the answer is 31/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/45-28/70 49/45-56/70 49/90-28/70 49/45-84/70