Add 3/25 and 72/21
1st number: 3/25, 2nd number: 3 9/21
3/25 + 72/21 is 621/175.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 25 × 21 = 525,
3/25 = 3 × 21/25 × 21 = 63/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
72/21 = 72 × 25/21 × 25 = 1800/525 - Add the two like fractions:
63/525 + 1800/525 = 63 + 1800/525 = 1863/525 - 1863/525 simplified gives 621/175
- So, 3/25 + 72/21 = 621/175
In mixed form: 396/175
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