Add 90/75 and 18/20
1st number: 1 15/75, 2nd number: 18/20
90/75 + 18/20 is 21/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
90/75 = 90 × 4/75 × 4 = 360/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
18/20 = 18 × 15/20 × 15 = 270/300 - Add the two like fractions:
360/300 + 270/300 = 360 + 270/300 = 630/300 - 630/300 simplified gives 21/10
- So, 90/75 + 18/20 = 21/10
In mixed form: 21/10
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