Add 42/4 and 81/70
1st number: 10 2/4, 2nd number: 1 11/70
42/4 + 81/70 is 408/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
42/4 = 42 × 35/4 × 35 = 1470/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
81/70 = 81 × 2/70 × 2 = 162/140 - Add the two like fractions:
1470/140 + 162/140 = 1470 + 162/140 = 1632/140 - 1632/140 simplified gives 408/35
- So, 42/4 + 81/70 = 408/35
In mixed form: 1123/35
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