Add 28/21 and 72/75
1st number: 1 7/21, 2nd number: 72/75
28/21 + 72/75 is 172/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 75 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
28/21 = 28 × 25/21 × 25 = 700/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
72/75 = 72 × 7/75 × 7 = 504/525 - Add the two like fractions:
700/525 + 504/525 = 700 + 504/525 = 1204/525 - 1204/525 simplified gives 172/75
- So, 28/21 + 72/75 = 172/75
In mixed form: 222/75
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