Add 42/84 and 75/54
1st number: 42/84, 2nd number: 1 21/54
42/84 + 75/54 is 17/9.
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,
75/54 = 75 × 14/54 × 14 = 1050/756 - Add the two like fractions:
378/756 + 1050/756 = 378 + 1050/756 = 1428/756 - 1428/756 simplified gives 17/9
- So, 42/84 + 75/54 = 17/9
In mixed form: 18/9
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