Add 45/3 and 18/40
1st number: 15 0/3, 2nd number: 18/40
45/3 + 18/40 is 309/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
45/3 = 45 × 40/3 × 40 = 1800/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
18/40 = 18 × 3/40 × 3 = 54/120 - Add the two like fractions:
1800/120 + 54/120 = 1800 + 54/120 = 1854/120 - 1854/120 simplified gives 309/20
- So, 45/3 + 18/40 = 309/20
In mixed form: 159/20
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