Add 15/42 and 70/28
1st number: 15/42, 2nd number: 2 14/28
15/42 + 70/28 is 20/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
15/42 = 15 × 2/42 × 2 = 30/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
70/28 = 70 × 3/28 × 3 = 210/84 - Add the two like fractions:
30/84 + 210/84 = 30 + 210/84 = 240/84 - 240/84 simplified gives 20/7
- So, 15/42 + 70/28 = 20/7
In mixed form: 26/7
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