Add 84/54 and 3/21
1st number: 1 30/54, 2nd number: 3/21
84/54 + 3/21 is 107/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 21 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
84/54 = 84 × 7/54 × 7 = 588/378 - Likewise, for the 2nd fraction, since 21 × 18 = 378,
3/21 = 3 × 18/21 × 18 = 54/378 - Add the two like fractions:
588/378 + 54/378 = 588 + 54/378 = 642/378 - 642/378 simplified gives 107/63
- So, 84/54 + 3/21 = 107/63
In mixed form: 144/63
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