Add 27/70 and 90/20
1st number: 27/70, 2nd number: 4 10/20
27/70 + 90/20 is 171/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
27/70 = 27 × 2/70 × 2 = 54/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
90/20 = 90 × 7/20 × 7 = 630/140 - Add the two like fractions:
54/140 + 630/140 = 54 + 630/140 = 684/140 - 684/140 simplified gives 171/35
- So, 27/70 + 90/20 = 171/35
In mixed form: 431/35
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