Add 21/25 and 75/40
1st number: 21/25, 2nd number: 1 35/40
21/25 + 75/40 is 543/200.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
21/25 = 21 × 8/25 × 8 = 168/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
75/40 = 75 × 5/40 × 5 = 375/200 - Add the two like fractions:
168/200 + 375/200 = 168 + 375/200 = 543/200 - So, 21/25 + 75/40 = 543/200
In mixed form: 2143/200
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