Add 72/21 and 30/75
1st number: 3 9/21, 2nd number: 30/75
72/21 + 30/75 is 134/35.
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,
72/21 = 72 × 25/21 × 25 = 1800/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
30/75 = 30 × 7/75 × 7 = 210/525 - Add the two like fractions:
1800/525 + 210/525 = 1800 + 210/525 = 2010/525 - 2010/525 simplified gives 134/35
- So, 72/21 + 30/75 = 134/35
In mixed form: 329/35
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