Add 40/84 and 15/10
1st number: 40/84, 2nd number: 1 5/10
40/84 + 15/10 is 83/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
40/84 = 40 × 5/84 × 5 = 200/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
15/10 = 15 × 42/10 × 42 = 630/420 - Add the two like fractions:
200/420 + 630/420 = 200 + 630/420 = 830/420 - 830/420 simplified gives 83/42
- So, 40/84 + 15/10 = 83/42
In mixed form: 141/42
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