Add 18/72 and 90/63
1st number: 18/72, 2nd number: 1 27/63
18/72 + 90/63 is 47/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
18/72 = 18 × 7/72 × 7 = 126/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
90/63 = 90 × 8/63 × 8 = 720/504 - Add the two like fractions:
126/504 + 720/504 = 126 + 720/504 = 846/504 - 846/504 simplified gives 47/28
- So, 18/72 + 90/63 = 47/28
In mixed form: 119/28
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