Add 21/8 and 20/25
1st number: 2 5/8, 2nd number: 20/25
21/8 + 20/25 is 137/40.
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,
20/25 = 20 × 8/25 × 8 = 160/200 - Add the two like fractions:
525/200 + 160/200 = 525 + 160/200 = 685/200 - 685/200 simplified gives 137/40
- So, 21/8 + 20/25 = 137/40
In mixed form: 317/40
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