Add 81/4 and 15/70
1st number: 20 1/4, 2nd number: 15/70
81/4 + 15/70 is 573/28.
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,
81/4 = 81 × 35/4 × 35 = 2835/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
15/70 = 15 × 2/70 × 2 = 30/140 - Add the two like fractions:
2835/140 + 30/140 = 2835 + 30/140 = 2865/140 - 2865/140 simplified gives 573/28
- So, 81/4 + 15/70 = 573/28
In mixed form: 2013/28
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