Add 21/28 and 42/25
1st number: 21/28, 2nd number: 1 17/25
21/28 + 42/25 is 243/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 25 is 700
Next, find the equivalent fraction of both fractional numbers with denominator 700 - For the 1st fraction, since 28 × 25 = 700,
21/28 = 21 × 25/28 × 25 = 525/700 - Likewise, for the 2nd fraction, since 25 × 28 = 700,
42/25 = 42 × 28/25 × 28 = 1176/700 - Add the two like fractions:
525/700 + 1176/700 = 525 + 1176/700 = 1701/700 - 1701/700 simplified gives 243/100
- So, 21/28 + 42/25 = 243/100
In mixed form: 243/100
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