Add 40/72 and 5/7
40/72 + 5/7 is 80/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
40/72 = 40 × 7/72 × 7 = 280/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
5/7 = 5 × 72/7 × 72 = 360/504 - Add the two like fractions:
280/504 + 360/504 = 280 + 360/504 = 640/504 - 640/504 simplified gives 80/63
- So, 40/72 + 5/7 = 80/63
In mixed form: 117/63
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