Add 20/80 and 2/21
20/80 + 2/21 is 29/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 21 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 21 × 80 = 1680,
2/21 = 2 × 80/21 × 80 = 160/1680 - Add the two like fractions:
420/1680 + 160/1680 = 420 + 160/1680 = 580/1680 - 580/1680 simplified gives 29/84
- So, 20/80 + 2/21 = 29/84
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