Add 18/15 and 84/80
1st number: 1 3/15, 2nd number: 1 4/80
18/15 + 84/80 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
18/15 = 18 × 16/15 × 16 = 288/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
84/80 = 84 × 3/80 × 3 = 252/240 - Add the two like fractions:
288/240 + 252/240 = 288 + 252/240 = 540/240 - 540/240 simplified gives 9/4
- So, 18/15 + 84/80 = 9/4
In mixed form: 21/4
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