Add 90/24 and 42/20
1st number: 3 18/24, 2nd number: 2 2/20
90/24 + 42/20 is 117/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 20 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
90/24 = 90 × 5/24 × 5 = 450/120 - Likewise, for the 2nd fraction, since 20 × 6 = 120,
42/20 = 42 × 6/20 × 6 = 252/120 - Add the two like fractions:
450/120 + 252/120 = 450 + 252/120 = 702/120 - 702/120 simplified gives 117/20
- So, 90/24 + 42/20 = 117/20
In mixed form: 517/20
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