Add 54/42 and 90/12
1st number: 1 12/42, 2nd number: 7 6/12
54/42 + 90/12 is 123/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 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 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84 - Add the two like fractions:
108/84 + 630/84 = 108 + 630/84 = 738/84 - 738/84 simplified gives 123/14
- So, 54/42 + 90/12 = 123/14
In mixed form: 811/14
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