Add 12/20 and 64/9
1st number: 12/20, 2nd number: 7 1/9
12/20 + 64/9 is 347/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
12/20 = 12 × 9/20 × 9 = 108/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
64/9 = 64 × 20/9 × 20 = 1280/180 - Add the two like fractions:
108/180 + 1280/180 = 108 + 1280/180 = 1388/180 - 1388/180 simplified gives 347/45
- So, 12/20 + 64/9 = 347/45
In mixed form: 732/45
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