Add 63/84 and 30/80
63/84 + 30/80 is 9/8.
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,
63/84 = 63 × 20/84 × 20 = 1260/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
30/80 = 30 × 21/80 × 21 = 630/1680 - Add the two like fractions:
1260/1680 + 630/1680 = 1260 + 630/1680 = 1890/1680 - 1890/1680 simplified gives 9/8
- So, 63/84 + 30/80 = 9/8
In mixed form: 11/8
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