Add 75/12 and 90/20
1st number: 6 3/12, 2nd number: 4 10/20
75/12 + 90/20 is 43/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
75/12 = 75 × 5/12 × 5 = 375/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
90/20 = 90 × 3/20 × 3 = 270/60 - Add the two like fractions:
375/60 + 270/60 = 375 + 270/60 = 645/60 - 645/60 simplified gives 43/4
- So, 75/12 + 90/20 = 43/4
In mixed form: 103/4
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