Add 20/80 and 30/84
20/80 + 30/84 is 17/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 84 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
20/80 = 20 × 21/80 × 21 = 420/1680 - Likewise, for the 2nd fraction, since 84 × 20 = 1680,
30/84 = 30 × 20/84 × 20 = 600/1680 - Add the two like fractions:
420/1680 + 600/1680 = 420 + 600/1680 = 1020/1680 - 1020/1680 simplified gives 17/28
- So, 20/80 + 30/84 = 17/28
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