Add 84/20 and 21/9
1st number: 4 4/20, 2nd number: 2 3/9
84/20 + 21/9 is 98/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
84/20 = 84 × 9/20 × 9 = 756/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
21/9 = 21 × 20/9 × 20 = 420/180 - Add the two like fractions:
756/180 + 420/180 = 756 + 420/180 = 1176/180 - 1176/180 simplified gives 98/15
- So, 84/20 + 21/9 = 98/15
In mixed form: 68/15
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