Add 18/40 and 72/18
1st number: 18/40, 2nd number: 4 0/18
18/40 + 72/18 is 89/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
18/40 = 18 × 9/40 × 9 = 162/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
72/18 = 72 × 20/18 × 20 = 1440/360 - Add the two like fractions:
162/360 + 1440/360 = 162 + 1440/360 = 1602/360 - 1602/360 simplified gives 89/20
- So, 18/40 + 72/18 = 89/20
In mixed form: 49/20
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