Add 12/40 and 45/30
1st number: 12/40, 2nd number: 1 15/30
12/40 + 45/30 is 9/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
12/40 = 12 × 3/40 × 3 = 36/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
45/30 = 45 × 4/30 × 4 = 180/120 - Add the two like fractions:
36/120 + 180/120 = 36 + 180/120 = 216/120 - 216/120 simplified gives 9/5
- So, 12/40 + 45/30 = 9/5
In mixed form: 14/5
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