Add 21/4 and 15/25
1st number: 5 1/4, 2nd number: 15/25
21/4 + 15/25 is 117/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 4 × 25 = 100,
21/4 = 21 × 25/4 × 25 = 525/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
15/25 = 15 × 4/25 × 4 = 60/100 - Add the two like fractions:
525/100 + 60/100 = 525 + 60/100 = 585/100 - 585/100 simplified gives 117/20
- So, 21/4 + 15/25 = 117/20
In mixed form: 517/20
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