Add 3/7 and 63/45, Solve 3/7 + 1 18/45 as a fraction

Add 3/7 and 63/45

1^st number: 3/7, 2^nd number: 1 18/45

3/7 + 63/45 is 64/35.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 7 × 45 = 315,
3/7 = 3 × 45/7 × 45 = 135/315
Likewise, for the 2nd fraction, since 45 × 7 = 315,
63/45 = 63 × 7/45 × 7 = 441/315
Add the two like fractions:
135/315 + 441/315 = 135 + 441/315 = 576/315
576/315 simplified gives 64/35
So, 3/7 + 63/45 = 64/35
In mixed form: 129/35

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