Add 90/20 and 90/30
1st number: 4 10/20, 2nd number: 3 0/30
90/20 + 90/30 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
90/20 = 90 × 3/20 × 3 = 270/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
90/30 = 90 × 2/30 × 2 = 180/60 - Add the two like fractions:
270/60 + 180/60 = 270 + 180/60 = 450/60 - 450/60 simplified gives 15/2
- So, 90/20 + 90/30 = 15/2
In mixed form: 71/2
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