Add 12/15 and 72/45
1st number: 12/15, 2nd number: 1 27/45
12/15 + 72/45 is 12/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
12/15 = 12 × 3/15 × 3 = 36/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
72/45 = 72 × 1/45 × 1 = 72/45 - Add the two like fractions:
36/45 + 72/45 = 36 + 72/45 = 108/45 - 108/45 simplified gives 12/5
- So, 12/15 + 72/45 = 12/5
In mixed form: 22/5
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