Add 54/42 and 21/4
1st number: 1 12/42, 2nd number: 5 1/4
54/42 + 21/4 is 183/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
54/42 = 54 × 2/42 × 2 = 108/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
21/4 = 21 × 21/4 × 21 = 441/84 - Add the two like fractions:
108/84 + 441/84 = 108 + 441/84 = 549/84 - 549/84 simplified gives 183/28
- So, 54/42 + 21/4 = 183/28
In mixed form: 615/28
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