Add 12/30 and 45/40, Solve 12/30 + 1 5/40 as a fraction

Add 12/30 and 45/40

1^st number: 12/30, 2^nd number: 1 5/40

12/30 + 45/40 is 61/40.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 30 × 4 = 120,
12/30 = 12 × 4/30 × 4 = 48/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
45/40 = 45 × 3/40 × 3 = 135/120
Add the two like fractions:
48/120 + 135/120 = 48 + 135/120 = 183/120
183/120 simplified gives 61/40
So, 12/30 + 45/40 = 61/40
In mixed form: 121/40

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