Add 3/42 and 9/60
3/42 + 9/60 is 31/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
3/42 = 3 × 10/42 × 10 = 30/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
9/60 = 9 × 7/60 × 7 = 63/420 - Add the two like fractions:
30/420 + 63/420 = 30 + 63/420 = 93/420 - 93/420 simplified gives 31/140
- So, 3/42 + 9/60 = 31/140
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