Add 42/84 and 45/54
42/84 + 45/54 is 4/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
42/84 = 42 × 9/84 × 9 = 378/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
45/54 = 45 × 14/54 × 14 = 630/756 - Add the two like fractions:
378/756 + 630/756 = 378 + 630/756 = 1008/756 - 1008/756 simplified gives 4/3
- So, 42/84 + 45/54 = 4/3
In mixed form: 11/3
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Related: 42/84+90/54