Add 21/3 and 84/45
1st number: 7 0/3, 2nd number: 1 39/45
21/3 + 84/45 is 133/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 3 × 15 = 45,
21/3 = 21 × 15/3 × 15 = 315/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
84/45 = 84 × 1/45 × 1 = 84/45 - Add the two like fractions:
315/45 + 84/45 = 315 + 84/45 = 399/45 - 399/45 simplified gives 133/15
- So, 21/3 + 84/45 = 133/15
In mixed form: 813/15
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