Add 20/8 and 70/15
1st number: 2 4/8, 2nd number: 4 10/15
20/8 + 70/15 is 43/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
20/8 = 20 × 15/8 × 15 = 300/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
70/15 = 70 × 8/15 × 8 = 560/120 - Add the two like fractions:
300/120 + 560/120 = 300 + 560/120 = 860/120 - 860/120 simplified gives 43/6
- So, 20/8 + 70/15 = 43/6
In mixed form: 71/6
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