Add 45/80 and 84/12
1st number: 45/80, 2nd number: 7 0/12
45/80 + 84/12 is 121/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 12 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
45/80 = 45 × 3/80 × 3 = 135/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
84/12 = 84 × 20/12 × 20 = 1680/240 - Add the two like fractions:
135/240 + 1680/240 = 135 + 1680/240 = 1815/240 - 1815/240 simplified gives 121/16
- So, 45/80 + 84/12 = 121/16
In mixed form: 79/16
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