Add 40/45 and 12/15
40/45 + 12/15 is 76/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
40/45 = 40 × 1/45 × 1 = 40/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
12/15 = 12 × 3/15 × 3 = 36/45 - Add the two like fractions:
40/45 + 36/45 = 40 + 36/45 = 76/45 - So, 40/45 + 12/15 = 76/45
In mixed form: 131/45
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