Add 42/84 and 84/7
1st number: 42/84, 2nd number: 12 0/7
42/84 + 84/7 is 25/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
42/84 = 42 × 1/84 × 1 = 42/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
84/7 = 84 × 12/7 × 12 = 1008/84 - Add the two like fractions:
42/84 + 1008/84 = 42 + 1008/84 = 1050/84 - 1050/84 simplified gives 25/2
- So, 42/84 + 84/7 = 25/2
In mixed form: 121/2
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