Add 18/72 and 9/40
18/72 + 9/40 is 19/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
18/72 = 18 × 5/72 × 5 = 90/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
9/40 = 9 × 9/40 × 9 = 81/360 - Add the two like fractions:
90/360 + 81/360 = 90 + 81/360 = 171/360 - 171/360 simplified gives 19/40
- So, 18/72 + 9/40 = 19/40
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