Add 56/90 and 84/70
1st number: 56/90, 2nd number: 1 14/70
56/90 + 84/70 is 82/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
56/90 = 56 × 7/90 × 7 = 392/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
84/70 = 84 × 9/70 × 9 = 756/630 - Add the two like fractions:
392/630 + 756/630 = 392 + 756/630 = 1148/630 - 1148/630 simplified gives 82/45
- So, 56/90 + 84/70 = 82/45
In mixed form: 137/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: