Add 40/42 and 72/10
1st number: 40/42, 2nd number: 7 2/10
40/42 + 72/10 is 856/105.
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,
40/42 = 40 × 5/42 × 5 = 200/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
72/10 = 72 × 21/10 × 21 = 1512/210 - Add the two like fractions:
200/210 + 1512/210 = 200 + 1512/210 = 1712/210 - 1712/210 simplified gives 856/105
- So, 40/42 + 72/10 = 856/105
In mixed form: 816/105
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