Add 40/10 and 12/42
1st number: 4 0/10, 2nd number: 12/42
40/10 + 12/42 is 30/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
40/10 = 40 × 21/10 × 21 = 840/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
12/42 = 12 × 5/42 × 5 = 60/210 - Add the two like fractions:
840/210 + 60/210 = 840 + 60/210 = 900/210 - 900/210 simplified gives 30/7
- So, 40/10 + 12/42 = 30/7
In mixed form: 42/7
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