Add 40/75 and 21/20
1st number: 40/75, 2nd number: 1 1/20
40/75 + 21/20 is 19/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
40/75 = 40 × 4/75 × 4 = 160/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
21/20 = 21 × 15/20 × 15 = 315/300 - Add the two like fractions:
160/300 + 315/300 = 160 + 315/300 = 475/300 - 475/300 simplified gives 19/12
- So, 40/75 + 21/20 = 19/12
In mixed form: 17/12
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