Add 21/54 and 45/4
1st number: 21/54, 2nd number: 11 1/4
21/54 + 45/4 is 419/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 4 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 54 × 2 = 108,
21/54 = 21 × 2/54 × 2 = 42/108 - Likewise, for the 2nd fraction, since 4 × 27 = 108,
45/4 = 45 × 27/4 × 27 = 1215/108 - Add the two like fractions:
42/108 + 1215/108 = 42 + 1215/108 = 1257/108 - 1257/108 simplified gives 419/36
- So, 21/54 + 45/4 = 419/36
In mixed form: 1123/36
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