Add 25/42 and 30/84
25/42 + 30/84 is 20/21.
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,
25/42 = 25 × 2/42 × 2 = 50/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
30/84 = 30 × 1/84 × 1 = 30/84 - Add the two like fractions:
50/84 + 30/84 = 50 + 30/84 = 80/84 - 80/84 simplified gives 20/21
- So, 25/42 + 30/84 = 20/21
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