Add 15/75 and 21/7
1st number: 15/75, 2nd number: 3 0/7
15/75 + 21/7 is 16/5.
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,
15/75 = 15 × 7/75 × 7 = 105/525 - Likewise, for the 2nd fraction, since 7 × 75 = 525,
21/7 = 21 × 75/7 × 75 = 1575/525 - Add the two like fractions:
105/525 + 1575/525 = 105 + 1575/525 = 1680/525 - 1680/525 simplified gives 16/5
- So, 15/75 + 21/7 = 16/5
In mixed form: 31/5
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