Add 18/15 and 90/45
1st number: 1 3/15, 2nd number: 2 0/45
18/15 + 90/45 is 16/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
18/15 = 18 × 3/15 × 3 = 54/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
90/45 = 90 × 1/45 × 1 = 90/45 - Add the two like fractions:
54/45 + 90/45 = 54 + 90/45 = 144/45 - 144/45 simplified gives 16/5
- So, 18/15 + 90/45 = 16/5
In mixed form: 31/5
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