Add 75/21 and 72/7
1st number: 3 12/21, 2nd number: 10 2/7
75/21 + 72/7 is 97/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 21 × 1 = 21,
75/21 = 75 × 1/21 × 1 = 75/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
72/7 = 72 × 3/7 × 3 = 216/21 - Add the two like fractions:
75/21 + 216/21 = 75 + 216/21 = 291/21 - 291/21 simplified gives 97/7
- So, 75/21 + 72/7 = 97/7
In mixed form: 136/7
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