Add 18/7 and 45/72
1st number: 2 4/7, 2nd number: 45/72
18/7 + 45/72 is 179/56.
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,
18/7 = 18 × 72/7 × 72 = 1296/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
45/72 = 45 × 7/72 × 7 = 315/504 - Add the two like fractions:
1296/504 + 315/504 = 1296 + 315/504 = 1611/504 - 1611/504 simplified gives 179/56
- So, 18/7 + 45/72 = 179/56
In mixed form: 311/56
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