Add 90/72 and 72/56
1st number: 1 18/72, 2nd number: 1 16/56
90/72 + 72/56 is 71/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 56 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 56 × 9 = 504,
72/56 = 72 × 9/56 × 9 = 648/504 - Add the two like fractions:
630/504 + 648/504 = 630 + 648/504 = 1278/504 - 1278/504 simplified gives 71/28
- So, 90/72 + 72/56 = 71/28
In mixed form: 215/28
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