Add 12/42 and 90/36
1st number: 12/42, 2nd number: 2 18/36
12/42 + 90/36 is 39/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 42 × 6 = 252,
12/42 = 12 × 6/42 × 6 = 72/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
90/36 = 90 × 7/36 × 7 = 630/252 - Add the two like fractions:
72/252 + 630/252 = 72 + 630/252 = 702/252 - 702/252 simplified gives 39/14
- So, 12/42 + 90/36 = 39/14
In mixed form: 211/14
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