Add 81/42 and 18/16
1st number: 1 39/42, 2nd number: 1 2/16
81/42 + 18/16 is 171/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
81/42 = 81 × 8/42 × 8 = 648/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
18/16 = 18 × 21/16 × 21 = 378/336 - Add the two like fractions:
648/336 + 378/336 = 648 + 378/336 = 1026/336 - 1026/336 simplified gives 171/56
- So, 81/42 + 18/16 = 171/56
In mixed form: 33/56
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