Add 90/7 and 63/72
1st number: 12 6/7, 2nd number: 63/72
90/7 + 63/72 is 769/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
90/7 = 90 × 72/7 × 72 = 6480/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
63/72 = 63 × 7/72 × 7 = 441/504 - Add the two like fractions:
6480/504 + 441/504 = 6480 + 441/504 = 6921/504 - 6921/504 simplified gives 769/56
- So, 90/7 + 63/72 = 769/56
In mixed form: 1341/56
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