Add 18/45 and 75/20
1st number: 18/45, 2nd number: 3 15/20
18/45 + 75/20 is 83/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
18/45 = 18 × 4/45 × 4 = 72/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
75/20 = 75 × 9/20 × 9 = 675/180 - Add the two like fractions:
72/180 + 675/180 = 72 + 675/180 = 747/180 - 747/180 simplified gives 83/20
- So, 18/45 + 75/20 = 83/20
In mixed form: 43/20
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