Add 84/63 and 45/20
1st number: 1 21/63, 2nd number: 2 5/20
84/63 + 45/20 is 43/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
84/63 = 84 × 20/63 × 20 = 1680/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
45/20 = 45 × 63/20 × 63 = 2835/1260 - Add the two like fractions:
1680/1260 + 2835/1260 = 1680 + 2835/1260 = 4515/1260 - 4515/1260 simplified gives 43/12
- So, 84/63 + 45/20 = 43/12
In mixed form: 37/12
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