Add 18/42 and 40/10
1st number: 18/42, 2nd number: 4 0/10
18/42 + 40/10 is 31/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
18/42 = 18 × 5/42 × 5 = 90/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
40/10 = 40 × 21/10 × 21 = 840/210 - Add the two like fractions:
90/210 + 840/210 = 90 + 840/210 = 930/210 - 930/210 simplified gives 31/7
- So, 18/42 + 40/10 = 31/7
In mixed form: 43/7
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