Add 7/84 and 84/42
1st number: 7/84, 2nd number: 2 0/42
7/84 + 84/42 is 25/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
7/84 = 7 × 1/84 × 1 = 7/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
84/42 = 84 × 2/42 × 2 = 168/84 - Add the two like fractions:
7/84 + 168/84 = 7 + 168/84 = 175/84 - 175/84 simplified gives 25/12
- So, 7/84 + 84/42 = 25/12
In mixed form: 21/12
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