Add 54/15 and 49/70
1st number: 3 9/15, 2nd number: 49/70
54/15 + 49/70 is 43/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
54/15 = 54 × 14/15 × 14 = 756/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
49/70 = 49 × 3/70 × 3 = 147/210 - Add the two like fractions:
756/210 + 147/210 = 756 + 147/210 = 903/210 - 903/210 simplified gives 43/10
- So, 54/15 + 49/70 = 43/10
In mixed form: 43/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+98/70 54/30+49/70 54/45+49/70 54/75+49/70