Add 21/45 and 42/27
1st number: 21/45, 2nd number: 1 15/27
21/45 + 42/27 is 91/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 45 × 3 = 135,
21/45 = 21 × 3/45 × 3 = 63/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
42/27 = 42 × 5/27 × 5 = 210/135 - Add the two like fractions:
63/135 + 210/135 = 63 + 210/135 = 273/135 - 273/135 simplified gives 91/45
- So, 21/45 + 42/27 = 91/45
In mixed form: 21/45
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