Add 20/12 and 9/45
1st number: 1 8/12, 2nd number: 9/45
20/12 + 9/45 is 28/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
20/12 = 20 × 15/12 × 15 = 300/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
9/45 = 9 × 4/45 × 4 = 36/180 - Add the two like fractions:
300/180 + 36/180 = 300 + 36/180 = 336/180 - 336/180 simplified gives 28/15
- So, 20/12 + 9/45 = 28/15
In mixed form: 113/15
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