Add 45/18 and 15/42
1st number: 2 9/18, 2nd number: 15/42
45/18 + 15/42 is 20/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
45/18 = 45 × 7/18 × 7 = 315/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
15/42 = 15 × 3/42 × 3 = 45/126 - Add the two like fractions:
315/126 + 45/126 = 315 + 45/126 = 360/126 - 360/126 simplified gives 20/7
- So, 45/18 + 15/42 = 20/7
In mixed form: 26/7
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