Add 90/72 and 75/28
1st number: 1 18/72, 2nd number: 2 19/28
90/72 + 75/28 is 55/14.
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,
75/28 = 75 × 18/28 × 18 = 1350/504 - Add the two like fractions:
630/504 + 1350/504 = 630 + 1350/504 = 1980/504 - 1980/504 simplified gives 55/14
- So, 90/72 + 75/28 = 55/14
In mixed form: 313/14
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