Add 56/90 and 27/70
56/90 + 27/70 is 127/126.
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,
27/70 = 27 × 9/70 × 9 = 243/630 - Add the two like fractions:
392/630 + 243/630 = 392 + 243/630 = 635/630 - 635/630 simplified gives 127/126
- So, 56/90 + 27/70 = 127/126
In mixed form: 11/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90+54/70 56/90+81/70