Add 98/21 and 90/20, Solve 4 14/21 + 4 10/20 as a fraction

Add 98/21 and 90/20

1^st number: 4 14/21, 2^nd number: 4 10/20

98/21 + 90/20 is 55/6.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 21 × 20 = 420,
98/21 = 98 × 20/21 × 20 = 1960/420
Likewise, for the 2nd fraction, since 20 × 21 = 420,
90/20 = 90 × 21/20 × 21 = 1890/420
Add the two like fractions:
1960/420 + 1890/420 = 1960 + 1890/420 = 3850/420
3850/420 simplified gives 55/6
So, 98/21 + 90/20 = 55/6
In mixed form: 91/6

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