Add 40/18 and 20/72
1st number: 2 4/18, 2nd number: 20/72
40/18 + 20/72 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
40/18 = 40 × 4/18 × 4 = 160/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Add the two like fractions:
160/72 + 20/72 = 160 + 20/72 = 180/72 - 180/72 simplified gives 5/2
- So, 40/18 + 20/72 = 5/2
In mixed form: 21/2
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