Add 72/18 and 42/84
1st number: 4 0/18, 2nd number: 42/84
72/18 + 42/84 is 9/2.
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,
72/18 = 72 × 14/18 × 14 = 1008/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
42/84 = 42 × 3/84 × 3 = 126/252 - Add the two like fractions:
1008/252 + 126/252 = 1008 + 126/252 = 1134/252 - 1134/252 simplified gives 9/2
- So, 72/18 + 42/84 = 9/2
In mixed form: 41/2
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