Add 20/72 and 84/12
1st number: 20/72, 2nd number: 7 0/12
20/72 + 84/12 is 131/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 12 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Likewise, for the 2nd fraction, since 12 × 6 = 72,
84/12 = 84 × 6/12 × 6 = 504/72 - Add the two like fractions:
20/72 + 504/72 = 20 + 504/72 = 524/72 - 524/72 simplified gives 131/18
- So, 20/72 + 84/12 = 131/18
In mixed form: 75/18
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