Add 4/42 and 40/72
4/42 + 40/72 is 41/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 42 × 12 = 504,
4/42 = 4 × 12/42 × 12 = 48/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
40/72 = 40 × 7/72 × 7 = 280/504 - Add the two like fractions:
48/504 + 280/504 = 48 + 280/504 = 328/504 - 328/504 simplified gives 41/63
- So, 4/42 + 40/72 = 41/63
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