Add 18/72 and 18/20
18/72 + 18/20 is 23/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 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 20 × 18 = 360,
18/20 = 18 × 18/20 × 18 = 324/360 - Add the two like fractions:
90/360 + 324/360 = 90 + 324/360 = 414/360 - 414/360 simplified gives 23/20
- So, 18/72 + 18/20 = 23/20
In mixed form: 13/20
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