Add 36/54 and 12/42
36/54 + 12/42 is 20/21.
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,
36/54 = 36 × 7/54 × 7 = 252/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
12/42 = 12 × 9/42 × 9 = 108/378 - Add the two like fractions:
252/378 + 108/378 = 252 + 108/378 = 360/378 - 360/378 simplified gives 20/21
- So, 36/54 + 12/42 = 20/21
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