Add 70/72 and 18/28
70/72 + 18/28 is 407/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 28 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
70/72 = 70 × 7/72 × 7 = 490/504 - Likewise, for the 2nd fraction, since 28 × 18 = 504,
18/28 = 18 × 18/28 × 18 = 324/504 - Add the two like fractions:
490/504 + 324/504 = 490 + 324/504 = 814/504 - 814/504 simplified gives 407/252
- So, 70/72 + 18/28 = 407/252
In mixed form: 1155/252
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