Add 72/28 and 21/72
1st number: 2 16/28, 2nd number: 21/72
72/28 + 21/72 is 481/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
72/28 = 72 × 18/28 × 18 = 1296/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
21/72 = 21 × 7/72 × 7 = 147/504 - Add the two like fractions:
1296/504 + 147/504 = 1296 + 147/504 = 1443/504 - 1443/504 simplified gives 481/168
- So, 72/28 + 21/72 = 481/168
In mixed form: 2145/168
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