Add 40/5 and 45/18
1st number: 8 0/5, 2nd number: 2 9/18
40/5 + 45/18 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
40/5 = 40 × 18/5 × 18 = 720/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
45/18 = 45 × 5/18 × 5 = 225/90 - Add the two like fractions:
720/90 + 225/90 = 720 + 225/90 = 945/90 - 945/90 simplified gives 21/2
- So, 40/5 + 45/18 = 21/2
In mixed form: 101/2
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