Add 72/75 and 21/12
1st number: 72/75, 2nd number: 1 9/12
72/75 + 21/12 is 271/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
72/75 = 72 × 4/75 × 4 = 288/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
21/12 = 21 × 25/12 × 25 = 525/300 - Add the two like fractions:
288/300 + 525/300 = 288 + 525/300 = 813/300 - 813/300 simplified gives 271/100
- So, 72/75 + 21/12 = 271/100
In mixed form: 271/100
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