Add 90/72 and 15/28
1st number: 1 18/72, 2nd number: 15/28
90/72 + 15/28 is 25/14.
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,
90/72 = 90 × 7/72 × 7 = 630/504 - Likewise, for the 2nd fraction, since 28 × 18 = 504,
15/28 = 15 × 18/28 × 18 = 270/504 - Add the two like fractions:
630/504 + 270/504 = 630 + 270/504 = 900/504 - 900/504 simplified gives 25/14
- So, 90/72 + 15/28 = 25/14
In mixed form: 111/14
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