Add 9/4 and 84/20
1st number: 2 1/4, 2nd number: 4 4/20
9/4 + 84/20 is 129/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
9/4 = 9 × 5/4 × 5 = 45/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
84/20 = 84 × 1/20 × 1 = 84/20 - Add the two like fractions:
45/20 + 84/20 = 45 + 84/20 = 129/20 - So, 9/4 + 84/20 = 129/20
In mixed form: 69/20
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