Add 72/42 and 42/84
1st number: 1 30/42, 2nd number: 42/84
72/42 + 42/84 is 31/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
72/42 = 72 × 2/42 × 2 = 144/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
42/84 = 42 × 1/84 × 1 = 42/84 - Add the two like fractions:
144/84 + 42/84 = 144 + 42/84 = 186/84 - 186/84 simplified gives 31/14
- So, 72/42 + 42/84 = 31/14
In mixed form: 23/14
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Related: 72/84+42/84