Add 27/63 and 90/27
1st number: 27/63, 2nd number: 3 9/27
27/63 + 90/27 is 79/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 63 × 3 = 189,
27/63 = 27 × 3/63 × 3 = 81/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
90/27 = 90 × 7/27 × 7 = 630/189 - Add the two like fractions:
81/189 + 630/189 = 81 + 630/189 = 711/189 - 711/189 simplified gives 79/21
- So, 27/63 + 90/27 = 79/21
In mixed form: 316/21
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