Add 18/40 and 30/8
1st number: 18/40, 2nd number: 3 6/8
18/40 + 30/8 is 21/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
18/40 = 18 × 1/40 × 1 = 18/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
30/8 = 30 × 5/8 × 5 = 150/40 - Add the two like fractions:
18/40 + 150/40 = 18 + 150/40 = 168/40 - 168/40 simplified gives 21/5
- So, 18/40 + 30/8 = 21/5
In mixed form: 41/5
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