Add 20/30 and 4/84
20/30 + 4/84 is 5/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
20/30 = 20 × 14/30 × 14 = 280/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
4/84 = 4 × 5/84 × 5 = 20/420 - Add the two like fractions:
280/420 + 20/420 = 280 + 20/420 = 300/420 - 300/420 simplified gives 5/7
- So, 20/30 + 4/84 = 5/7
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