Add 75/30 and 54/21
1st number: 2 15/30, 2nd number: 2 12/21
75/30 + 54/21 is 71/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
75/30 = 75 × 7/30 × 7 = 525/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
54/21 = 54 × 10/21 × 10 = 540/210 - Add the two like fractions:
525/210 + 540/210 = 525 + 540/210 = 1065/210 - 1065/210 simplified gives 71/14
- So, 75/30 + 54/21 = 71/14
In mixed form: 51/14
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