Add 12/72 and 72/63
1st number: 12/72, 2nd number: 1 9/63
12/72 + 72/63 is 55/42.
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,
12/72 = 12 × 7/72 × 7 = 84/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
72/63 = 72 × 8/63 × 8 = 576/504 - Add the two like fractions:
84/504 + 576/504 = 84 + 576/504 = 660/504 - 660/504 simplified gives 55/42
- So, 12/72 + 72/63 = 55/42
In mixed form: 113/42
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