Add 84/9 and 7/42
1st number: 9 3/9, 2nd number: 7/42
84/9 + 7/42 is 19/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
84/9 = 84 × 14/9 × 14 = 1176/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
7/42 = 7 × 3/42 × 3 = 21/126 - Add the two like fractions:
1176/126 + 21/126 = 1176 + 21/126 = 1197/126 - 1197/126 simplified gives 19/2
- So, 84/9 + 7/42 = 19/2
In mixed form: 91/2
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