Add 84/20 and 12/45
1st number: 4 4/20, 2nd number: 12/45
84/20 + 12/45 is 67/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
84/20 = 84 × 9/20 × 9 = 756/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
12/45 = 12 × 4/45 × 4 = 48/180 - Add the two like fractions:
756/180 + 48/180 = 756 + 48/180 = 804/180 - 804/180 simplified gives 67/15
- So, 84/20 + 12/45 = 67/15
In mixed form: 47/15
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