Add 21/20 and 45/75
1st number: 1 1/20, 2nd number: 45/75
21/20 + 45/75 is 33/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 20 × 15 = 300,
21/20 = 21 × 15/20 × 15 = 315/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
45/75 = 45 × 4/75 × 4 = 180/300 - Add the two like fractions:
315/300 + 180/300 = 315 + 180/300 = 495/300 - 495/300 simplified gives 33/20
- So, 21/20 + 45/75 = 33/20
In mixed form: 113/20
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