Add 40/21 and 21/49, Solve 1 19/21 + 21/49 as a fraction

Add 40/21 and 21/49

1^st number: 1 19/21, 2^nd number: 21/49

40/21 + 21/49 is 7/3.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147

Next, find the equivalent fraction of both fractional numbers with denominator 147
For the 1st fraction, since 21 × 7 = 147,
40/21 = 40 × 7/21 × 7 = 280/147
Likewise, for the 2nd fraction, since 49 × 3 = 147,
21/49 = 21 × 3/49 × 3 = 63/147
Add the two like fractions:
280/147 + 63/147 = 280 + 63/147 = 343/147
343/147 simplified gives 7/3
So, 40/21 + 21/49 = 7/3
In mixed form: 21/3

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