Add 27/84 and 63/80
27/84 + 63/80 is 621/560.
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,
27/84 = 27 × 20/84 × 20 = 540/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
63/80 = 63 × 21/80 × 21 = 1323/1680 - Add the two like fractions:
540/1680 + 1323/1680 = 540 + 1323/1680 = 1863/1680 - 1863/1680 simplified gives 621/560
- So, 27/84 + 63/80 = 621/560
In mixed form: 161/560
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