Add 20/42 and 42/84
20/42 + 42/84 is 41/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
20/42 = 20 × 2/42 × 2 = 40/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
42/84 = 42 × 1/84 × 1 = 42/84 - Add the two like fractions:
40/84 + 42/84 = 40 + 42/84 = 82/84 - 82/84 simplified gives 41/42
- So, 20/42 + 42/84 = 41/42
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