Add 21/8 and 45/25
1st number: 2 5/8, 2nd number: 1 20/25
21/8 + 45/25 is 177/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 25 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 8 × 25 = 200,
21/8 = 21 × 25/8 × 25 = 525/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
45/25 = 45 × 8/25 × 8 = 360/200 - Add the two like fractions:
525/200 + 360/200 = 525 + 360/200 = 885/200 - 885/200 simplified gives 177/40
- So, 21/8 + 45/25 = 177/40
In mixed form: 417/40
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