Add 4/42 and 25/40
4/42 + 25/40 is 121/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 42 × 20 = 840,
4/42 = 4 × 20/42 × 20 = 80/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
25/40 = 25 × 21/40 × 21 = 525/840 - Add the two like fractions:
80/840 + 525/840 = 80 + 525/840 = 605/840 - 605/840 simplified gives 121/168
- So, 4/42 + 25/40 = 121/168
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