Add 18/75 and 21/7
1st number: 18/75, 2nd number: 3 0/7
18/75 + 21/7 is 81/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 7 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
18/75 = 18 × 7/75 × 7 = 126/525 - Likewise, for the 2nd fraction, since 7 × 75 = 525,
21/7 = 21 × 75/7 × 75 = 1575/525 - Add the two like fractions:
126/525 + 1575/525 = 126 + 1575/525 = 1701/525 - 1701/525 simplified gives 81/25
- So, 18/75 + 21/7 = 81/25
In mixed form: 36/25
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