Add 72/56 and 42/18
1st number: 1 16/56, 2nd number: 2 6/18
72/56 + 42/18 is 76/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
72/56 = 72 × 9/56 × 9 = 648/504 - Likewise, for the 2nd fraction, since 18 × 28 = 504,
42/18 = 42 × 28/18 × 28 = 1176/504 - Add the two like fractions:
648/504 + 1176/504 = 648 + 1176/504 = 1824/504 - 1824/504 simplified gives 76/21
- So, 72/56 + 42/18 = 76/21
In mixed form: 313/21
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