Add 20/84 and 5/10
20/84 + 5/10 is 31/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
20/84 = 20 × 5/84 × 5 = 100/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
5/10 = 5 × 42/10 × 42 = 210/420 - Add the two like fractions:
100/420 + 210/420 = 100 + 210/420 = 310/420 - 310/420 simplified gives 31/42
- So, 20/84 + 5/10 = 31/42
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