Add 42/72 and 45/54
42/72 + 45/54 is 17/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
42/72 = 42 × 3/72 × 3 = 126/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
45/54 = 45 × 4/54 × 4 = 180/216 - Add the two like fractions:
126/216 + 180/216 = 126 + 180/216 = 306/216 - 306/216 simplified gives 17/12
- So, 42/72 + 45/54 = 17/12
In mixed form: 15/12
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