Add 40/21 and 54/70
1st number: 1 19/21, 2nd number: 54/70
40/21 + 54/70 is 281/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
40/21 = 40 × 10/21 × 10 = 400/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
54/70 = 54 × 3/70 × 3 = 162/210 - Add the two like fractions:
400/210 + 162/210 = 400 + 162/210 = 562/210 - 562/210 simplified gives 281/105
- So, 40/21 + 54/70 = 281/105
In mixed form: 271/105
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