Add 40/45 and 21/12
1st number: 40/45, 2nd number: 1 9/12
40/45 + 21/12 is 95/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
40/45 = 40 × 4/45 × 4 = 160/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
21/12 = 21 × 15/12 × 15 = 315/180 - Add the two like fractions:
160/180 + 315/180 = 160 + 315/180 = 475/180 - 475/180 simplified gives 95/36
- So, 40/45 + 21/12 = 95/36
In mixed form: 223/36
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