Add 9/21 and 45/25
1st number: 9/21, 2nd number: 1 20/25
9/21 + 45/25 is 78/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 25 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
9/21 = 9 × 25/21 × 25 = 225/525 - Likewise, for the 2nd fraction, since 25 × 21 = 525,
45/25 = 45 × 21/25 × 21 = 945/525 - Add the two like fractions:
225/525 + 945/525 = 225 + 945/525 = 1170/525 - 1170/525 simplified gives 78/35
- So, 9/21 + 45/25 = 78/35
In mixed form: 28/35
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