Add 30/28 and 12/72
1st number: 1 2/28, 2nd number: 12/72
30/28 + 12/72 is 26/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
30/28 = 30 × 18/28 × 18 = 540/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
12/72 = 12 × 7/72 × 7 = 84/504 - Add the two like fractions:
540/504 + 84/504 = 540 + 84/504 = 624/504 - 624/504 simplified gives 26/21
- So, 30/28 + 12/72 = 26/21
In mixed form: 15/21
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