Add 90/20 and 90/6
1st number: 4 10/20, 2nd number: 15 0/6
90/20 + 90/6 is 39/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 6 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 6 × 10 = 60,
90/6 = 90 × 10/6 × 10 = 900/60 - Add the two like fractions:
270/60 + 900/60 = 270 + 900/60 = 1170/60 - 1170/60 simplified gives 39/2
- So, 90/20 + 90/6 = 39/2
In mixed form: 191/2
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