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

Add 42/5 and 21/98

1^st number: 8 2/5, 2^nd number: 21/98

42/5 + 21/98 is 603/70.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 98 is 490

Next, find the equivalent fraction of both fractional numbers with denominator 490
For the 1st fraction, since 5 × 98 = 490,
42/5 = 42 × 98/5 × 98 = 4116/490
Likewise, for the 2nd fraction, since 98 × 5 = 490,
21/98 = 21 × 5/98 × 5 = 105/490
Add the two like fractions:
4116/490 + 105/490 = 4116 + 105/490 = 4221/490
4221/490 simplified gives 603/70
So, 42/5 + 21/98 = 603/70
In mixed form: 843/70

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