Add 6/21 and 64/45, Solve 6/21 + 1 19/45 as a fraction

Add 6/21 and 64/45

1^st number: 6/21, 2^nd number: 1 19/45

6/21 + 64/45 is 538/315.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 21 × 15 = 315,
6/21 = 6 × 15/21 × 15 = 90/315
Likewise, for the 2nd fraction, since 45 × 7 = 315,
64/45 = 64 × 7/45 × 7 = 448/315
Add the two like fractions:
90/315 + 448/315 = 90 + 448/315 = 538/315
So, 6/21 + 64/45 = 538/315
In mixed form: 1223/315

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