Add 42/12 and 45/18
1st number: 3 6/12, 2nd number: 2 9/18
42/12 + 45/18 is 6/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
42/12 = 42 × 3/12 × 3 = 126/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
45/18 = 45 × 2/18 × 2 = 90/36 - Add the two like fractions:
126/36 + 90/36 = 126 + 90/36 = 216/36 - 216/36 simplified gives 6/1
- So, 42/12 + 45/18 = 6/1
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