Add 40/84 and 3/10
40/84 + 3/10 is 163/210.
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,
3/10 = 3 × 42/10 × 42 = 126/420 - Add the two like fractions:
200/420 + 126/420 = 200 + 126/420 = 326/420 - 326/420 simplified gives 163/210
- So, 40/84 + 3/10 = 163/210
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