Add 21/2 and 84/63
1st number: 10 1/2, 2nd number: 1 21/63
21/2 + 84/63 is 71/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 2 × 63 = 126,
21/2 = 21 × 63/2 × 63 = 1323/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
84/63 = 84 × 2/63 × 2 = 168/126 - Add the two like fractions:
1323/126 + 168/126 = 1323 + 168/126 = 1491/126 - 1491/126 simplified gives 71/6
- So, 21/2 + 84/63 = 71/6
In mixed form: 115/6
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