Add 84/45 and 20/12
1st number: 1 39/45, 2nd number: 1 8/12
84/45 + 20/12 is 53/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
84/45 = 84 × 4/45 × 4 = 336/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
20/12 = 20 × 15/12 × 15 = 300/180 - Add the two like fractions:
336/180 + 300/180 = 336 + 300/180 = 636/180 - 636/180 simplified gives 53/15
- So, 84/45 + 20/12 = 53/15
In mixed form: 38/15
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