Add 21/45 and 84/16
1st number: 21/45, 2nd number: 5 4/16
21/45 + 84/16 is 343/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
21/45 = 21 × 16/45 × 16 = 336/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
84/16 = 84 × 45/16 × 45 = 3780/720 - Add the two like fractions:
336/720 + 3780/720 = 336 + 3780/720 = 4116/720 - 4116/720 simplified gives 343/60
- So, 21/45 + 84/16 = 343/60
In mixed form: 543/60
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