Add 90/20 and 18/24
1st number: 4 10/20, 2nd number: 18/24
90/20 + 18/24 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 20 × 6 = 120,
90/20 = 90 × 6/20 × 6 = 540/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
18/24 = 18 × 5/24 × 5 = 90/120 - Add the two like fractions:
540/120 + 90/120 = 540 + 90/120 = 630/120 - 630/120 simplified gives 21/4
- So, 90/20 + 18/24 = 21/4
In mixed form: 51/4
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