Add 8/15 and 54/70
8/15 + 54/70 is 137/105.
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,
8/15 = 8 × 14/15 × 14 = 112/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
54/70 = 54 × 3/70 × 3 = 162/210 - Add the two like fractions:
112/210 + 162/210 = 112 + 162/210 = 274/210 - 274/210 simplified gives 137/105
- So, 8/15 + 54/70 = 137/105
In mixed form: 132/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/15+54/70 8/30+54/70 24/15+54/70 8/45+54/70 40/15+54/70 8/75+54/70 56/15+54/70