Add 90/27 and 12/63
1st number: 3 9/27, 2nd number: 12/63
90/27 + 12/63 is 74/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 63 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
90/27 = 90 × 7/27 × 7 = 630/189 - Likewise, for the 2nd fraction, since 63 × 3 = 189,
12/63 = 12 × 3/63 × 3 = 36/189 - Add the two like fractions:
630/189 + 36/189 = 630 + 36/189 = 666/189 - 666/189 simplified gives 74/21
- So, 90/27 + 12/63 = 74/21
In mixed form: 311/21
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