Add 12/9 and 40/72
1st number: 1 3/9, 2nd number: 40/72
12/9 + 40/72 is 17/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
12/9 = 12 × 8/9 × 8 = 96/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
40/72 = 40 × 1/72 × 1 = 40/72 - Add the two like fractions:
96/72 + 40/72 = 96 + 40/72 = 136/72 - 136/72 simplified gives 17/9
- So, 12/9 + 40/72 = 17/9
In mixed form: 18/9
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