Add 40/21 and 45/49, Solve 1 19/21 + 45/49 as a fraction

Add 40/21 and 45/49

1^st number: 1 19/21, 2^nd number: 45/49

40/21 + 45/49 is 415/147.

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,
45/49 = 45 × 3/49 × 3 = 135/147
Add the two like fractions:
280/147 + 135/147 = 280 + 135/147 = 415/147
So, 40/21 + 45/49 = 415/147
In mixed form: 2121/147

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