Add 36/9 and 20/84
1st number: 4 0/9, 2nd number: 20/84
36/9 + 20/84 is 89/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
36/9 = 36 × 28/9 × 28 = 1008/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
20/84 = 20 × 3/84 × 3 = 60/252 - Add the two like fractions:
1008/252 + 60/252 = 1008 + 60/252 = 1068/252 - 1068/252 simplified gives 89/21
- So, 36/9 + 20/84 = 89/21
In mixed form: 45/21
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