Add 12/42 and 90/8
1st number: 12/42, 2nd number: 11 2/8
12/42 + 90/8 is 323/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
12/42 = 12 × 4/42 × 4 = 48/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
90/8 = 90 × 21/8 × 21 = 1890/168 - Add the two like fractions:
48/168 + 1890/168 = 48 + 1890/168 = 1938/168 - 1938/168 simplified gives 323/28
- So, 12/42 + 90/8 = 323/28
In mixed form: 1115/28
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