Add 70/18 and 49/56
1st number: 3 16/18, 2nd number: 49/56
70/18 + 49/56 is 343/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 18 × 28 = 504,
70/18 = 70 × 28/18 × 28 = 1960/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
49/56 = 49 × 9/56 × 9 = 441/504 - Add the two like fractions:
1960/504 + 441/504 = 1960 + 441/504 = 2401/504 - 2401/504 simplified gives 343/72
- So, 70/18 + 49/56 = 343/72
In mixed form: 455/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+98/56 70/36+49/56 70/54+49/56 70/90+49/56