Add 70/72 and 8/21
70/72 + 8/21 is 341/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 21 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 21 × 24 = 504,
8/21 = 8 × 24/21 × 24 = 192/504 - Add the two like fractions:
490/504 + 192/504 = 490 + 192/504 = 682/504 - 682/504 simplified gives 341/252
- So, 70/72 + 8/21 = 341/252
In mixed form: 189/252
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