Add 42/5 and 98/21, Solve 8 2/5 + 4 14/21 as a fraction

Add 42/5 and 98/21

1^st number: 8 2/5, 2^nd number: 4 14/21

42/5 + 98/21 is 196/15.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 5 × 21 = 105,
42/5 = 42 × 21/5 × 21 = 882/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
98/21 = 98 × 5/21 × 5 = 490/105
Add the two like fractions:
882/105 + 490/105 = 882 + 490/105 = 1372/105
1372/105 simplified gives 196/15
So, 42/5 + 98/21 = 196/15
In mixed form: 131/15

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