Add 21/7 and 18/64, Solve 3 0/7 + 18/64 as a fraction

Add 21/7 and 18/64

1^st number: 3 0/7, 2^nd number: 18/64

21/7 + 18/64 is 105/32.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 64 is 448

Next, find the equivalent fraction of both fractional numbers with denominator 448
For the 1st fraction, since 7 × 64 = 448,
21/7 = 21 × 64/7 × 64 = 1344/448
Likewise, for the 2nd fraction, since 64 × 7 = 448,
18/64 = 18 × 7/64 × 7 = 126/448
Add the two like fractions:
1344/448 + 126/448 = 1344 + 126/448 = 1470/448
1470/448 simplified gives 105/32
So, 21/7 + 18/64 = 105/32
In mixed form: 39/32

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