Add 15/9 and 30/42
1st number: 1 6/9, 2nd number: 30/42
15/9 + 30/42 is 50/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
15/9 = 15 × 14/9 × 14 = 210/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
30/42 = 30 × 3/42 × 3 = 90/126 - Add the two like fractions:
210/126 + 90/126 = 210 + 90/126 = 300/126 - 300/126 simplified gives 50/21
- So, 15/9 + 30/42 = 50/21
In mixed form: 28/21
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