Add 18/20 and 45/75
18/20 + 45/75 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 20 × 15 = 300,
18/20 = 18 × 15/20 × 15 = 270/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
45/75 = 45 × 4/75 × 4 = 180/300 - Add the two like fractions:
270/300 + 180/300 = 270 + 180/300 = 450/300 - 450/300 simplified gives 3/2
- So, 18/20 + 45/75 = 3/2
In mixed form: 11/2
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