Add 10/40 and 28/42
10/40 + 28/42 is 11/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
10/40 = 10 × 21/40 × 21 = 210/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
28/42 = 28 × 20/42 × 20 = 560/840 - Add the two like fractions:
210/840 + 560/840 = 210 + 560/840 = 770/840 - 770/840 simplified gives 11/12
- So, 10/40 + 28/42 = 11/12
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