Add 72/63 and 21/8
1st number: 1 9/63, 2nd number: 2 5/8
72/63 + 21/8 is 211/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 8 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
72/63 = 72 × 8/63 × 8 = 576/504 - Likewise, for the 2nd fraction, since 8 × 63 = 504,
21/8 = 21 × 63/8 × 63 = 1323/504 - Add the two like fractions:
576/504 + 1323/504 = 576 + 1323/504 = 1899/504 - 1899/504 simplified gives 211/56
- So, 72/63 + 21/8 = 211/56
In mixed form: 343/56
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