Add 81/42 and 45/24
1st number: 1 39/42, 2nd number: 1 21/24
81/42 + 45/24 is 213/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
81/42 = 81 × 4/42 × 4 = 324/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
45/24 = 45 × 7/24 × 7 = 315/168 - Add the two like fractions:
324/168 + 315/168 = 324 + 315/168 = 639/168 - 639/168 simplified gives 213/56
- So, 81/42 + 45/24 = 213/56
In mixed form: 345/56
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