Add 2/54 and 90/21
1st number: 2/54, 2nd number: 4 6/21
2/54 + 90/21 is 817/189.
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,
2/54 = 2 × 7/54 × 7 = 14/378 - Likewise, for the 2nd fraction, since 21 × 18 = 378,
90/21 = 90 × 18/21 × 18 = 1620/378 - Add the two like fractions:
14/378 + 1620/378 = 14 + 1620/378 = 1634/378 - 1634/378 simplified gives 817/189
- So, 2/54 + 90/21 = 817/189
In mixed form: 461/189
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