Add 36/21 and 4/45, Solve 1 15/21 + 4/45 as a fraction

Add 36/21 and 4/45

1^st number: 1 15/21, 2^nd number: 4/45

36/21 + 4/45 is 568/315.

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,
36/21 = 36 × 15/21 × 15 = 540/315
Likewise, for the 2nd fraction, since 45 × 7 = 315,
4/45 = 4 × 7/45 × 7 = 28/315
Add the two like fractions:
540/315 + 28/315 = 540 + 28/315 = 568/315
So, 36/21 + 4/45 = 568/315
In mixed form: 1253/315

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