Add 7/42 and 21/16, Solve 7/42 + 1 5/16 as a fraction

Add 7/42 and 21/16

1^st number: 7/42, 2^nd number: 1 5/16

7/42 + 21/16 is 71/48.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 16 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 42 × 8 = 336,
7/42 = 7 × 8/42 × 8 = 56/336
Likewise, for the 2nd fraction, since 16 × 21 = 336,
21/16 = 21 × 21/16 × 21 = 441/336
Add the two like fractions:
56/336 + 441/336 = 56 + 441/336 = 497/336
497/336 simplified gives 71/48
So, 7/42 + 21/16 = 71/48
In mixed form: 123/48

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