Add 45/12 and 9/35, Solve 3 9/12 + 9/35 as a fraction

Add 45/12 and 9/35

1^st number: 3 9/12, 2^nd number: 9/35

45/12 + 9/35 is 561/140.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 35 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
45/12 = 45 × 35/12 × 35 = 1575/420
Likewise, for the 2nd fraction, since 35 × 12 = 420,
9/35 = 9 × 12/35 × 12 = 108/420
Add the two like fractions:
1575/420 + 108/420 = 1575 + 108/420 = 1683/420
1683/420 simplified gives 561/140
So, 45/12 + 9/35 = 561/140
In mixed form: 41/140

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