Add 56/70 and 15/18
56/70 + 15/18 is 49/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
56/70 = 56 × 9/70 × 9 = 504/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
15/18 = 15 × 35/18 × 35 = 525/630 - Add the two like fractions:
504/630 + 525/630 = 504 + 525/630 = 1029/630 - 1029/630 simplified gives 49/30
- So, 56/70 + 15/18 = 49/30
In mixed form: 119/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70+30/18 56/70+15/36 56/70+45/18 56/70+15/54 56/70+75/18 56/70+15/90