Add 15/5 and 18/40
1st number: 3 0/5, 2nd number: 18/40
15/5 + 18/40 is 69/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
15/5 = 15 × 8/5 × 8 = 120/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
18/40 = 18 × 1/40 × 1 = 18/40 - Add the two like fractions:
120/40 + 18/40 = 120 + 18/40 = 138/40 - 138/40 simplified gives 69/20
- So, 15/5 + 18/40 = 69/20
In mixed form: 39/20
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