Add 18/72 and 90/75
1st number: 18/72, 2nd number: 1 15/75
18/72 + 90/75 is 29/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 75 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
18/72 = 18 × 25/72 × 25 = 450/1800 - Likewise, for the 2nd fraction, since 75 × 24 = 1800,
90/75 = 90 × 24/75 × 24 = 2160/1800 - Add the two like fractions:
450/1800 + 2160/1800 = 450 + 2160/1800 = 2610/1800 - 2610/1800 simplified gives 29/20
- So, 18/72 + 90/75 = 29/20
In mixed form: 19/20
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