Add 90/6 and 98/20, Solve 15 0/6 + 4 18/20 as a fraction

Add 90/6 and 98/20

1^st number: 15 0/6, 2^nd number: 4 18/20

90/6 + 98/20 is 199/10.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 20 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 6 × 10 = 60,
90/6 = 90 × 10/6 × 10 = 900/60
Likewise, for the 2nd fraction, since 20 × 3 = 60,
98/20 = 98 × 3/20 × 3 = 294/60
Add the two like fractions:
900/60 + 294/60 = 900 + 294/60 = 1194/60
1194/60 simplified gives 199/10
So, 90/6 + 98/20 = 199/10
In mixed form: 199/10

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