Add 70/54 and 80/42
1st number: 1 16/54, 2nd number: 1 38/42
70/54 + 80/42 is 605/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
70/54 = 70 × 7/54 × 7 = 490/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
80/42 = 80 × 9/42 × 9 = 720/378 - Add the two like fractions:
490/378 + 720/378 = 490 + 720/378 = 1210/378 - 1210/378 simplified gives 605/189
- So, 70/54 + 80/42 = 605/189
In mixed form: 338/189
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