Add 84/4 and 75/20
1st number: 21 0/4, 2nd number: 3 15/20
84/4 + 75/20 is 99/4.
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,
84/4 = 84 × 5/4 × 5 = 420/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
75/20 = 75 × 1/20 × 1 = 75/20 - Add the two like fractions:
420/20 + 75/20 = 420 + 75/20 = 495/20 - 495/20 simplified gives 99/4
- So, 84/4 + 75/20 = 99/4
In mixed form: 243/4
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