Add 21/45 and 84/9
1st number: 21/45, 2nd number: 9 3/9
21/45 + 84/9 is 49/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
21/45 = 21 × 1/45 × 1 = 21/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
84/9 = 84 × 5/9 × 5 = 420/45 - Add the two like fractions:
21/45 + 420/45 = 21 + 420/45 = 441/45 - 441/45 simplified gives 49/5
- So, 21/45 + 84/9 = 49/5
In mixed form: 94/5
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