Add 84/63 and 12/5
1st number: 1 21/63, 2nd number: 2 2/5
84/63 + 12/5 is 56/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 5 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
84/63 = 84 × 5/63 × 5 = 420/315 - Likewise, for the 2nd fraction, since 5 × 63 = 315,
12/5 = 12 × 63/5 × 63 = 756/315 - Add the two like fractions:
420/315 + 756/315 = 420 + 756/315 = 1176/315 - 1176/315 simplified gives 56/15
- So, 84/63 + 12/5 = 56/15
In mixed form: 311/15
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