Add 7/72 and 90/28
1st number: 7/72, 2nd number: 3 6/28
7/72 + 90/28 is 1669/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 28 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
7/72 = 7 × 7/72 × 7 = 49/504 - Likewise, for the 2nd fraction, since 28 × 18 = 504,
90/28 = 90 × 18/28 × 18 = 1620/504 - Add the two like fractions:
49/504 + 1620/504 = 49 + 1620/504 = 1669/504 - So, 7/72 + 90/28 = 1669/504
In mixed form: 3157/504
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