Add 42/18 and 72/84
1st number: 2 6/18, 2nd number: 72/84
42/18 + 72/84 is 67/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
42/18 = 42 × 14/18 × 14 = 588/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
72/84 = 72 × 3/84 × 3 = 216/252 - Add the two like fractions:
588/252 + 216/252 = 588 + 216/252 = 804/252 - 804/252 simplified gives 67/21
- So, 42/18 + 72/84 = 67/21
In mixed form: 34/21
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