Add 40/15 and 42/18
1st number: 2 10/15, 2nd number: 2 6/18
40/15 + 42/18 is 5/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
40/15 = 40 × 6/15 × 6 = 240/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Add the two like fractions:
240/90 + 210/90 = 240 + 210/90 = 450/90 - 450/90 simplified gives 5/1
- So, 40/15 + 42/18 = 5/1
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