Add 75/18 and 90/72
1st number: 4 3/18, 2nd number: 1 18/72
75/18 + 90/72 is 65/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
75/18 = 75 × 4/18 × 4 = 300/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Add the two like fractions:
300/72 + 90/72 = 300 + 90/72 = 390/72 - 390/72 simplified gives 65/12
- So, 75/18 + 90/72 = 65/12
In mixed form: 55/12
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