Add 8/45 and 90/21, Solve 8/45 + 4 6/21 as a fraction

Add 8/45 and 90/21

1^st number: 8/45, 2^nd number: 4 6/21

8/45 + 90/21 is 1406/315.

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

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 45 × 7 = 315,
8/45 = 8 × 7/45 × 7 = 56/315
Likewise, for the 2nd fraction, since 21 × 15 = 315,
90/21 = 90 × 15/21 × 15 = 1350/315
Add the two like fractions:
56/315 + 1350/315 = 56 + 1350/315 = 1406/315
So, 8/45 + 90/21 = 1406/315
In mixed form: 4146/315

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