Add 30/84 and 21/80
30/84 + 21/80 is 347/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 84 × 20 = 1680,
30/84 = 30 × 20/84 × 20 = 600/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
21/80 = 21 × 21/80 × 21 = 441/1680 - Add the two like fractions:
600/1680 + 441/1680 = 600 + 441/1680 = 1041/1680 - 1041/1680 simplified gives 347/560
- So, 30/84 + 21/80 = 347/560
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