Add 45/18 and 20/16
1st number: 2 9/18, 2nd number: 1 4/16
45/18 + 20/16 is 15/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
45/18 = 45 × 8/18 × 8 = 360/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
20/16 = 20 × 9/16 × 9 = 180/144 - Add the two like fractions:
360/144 + 180/144 = 360 + 180/144 = 540/144 - 540/144 simplified gives 15/4
- So, 45/18 + 20/16 = 15/4
In mixed form: 33/4
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