Add 18/72 and 5/40
18/72 + 5/40 is 3/8.
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,
5/40 = 5 × 9/40 × 9 = 45/360 - Add the two like fractions:
90/360 + 45/360 = 90 + 45/360 = 135/360 - 135/360 simplified gives 3/8
- So, 18/72 + 5/40 = 3/8
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