Add 81/4 and 75/70
1st number: 20 1/4, 2nd number: 1 5/70
81/4 + 75/70 is 597/28.
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,
75/70 = 75 × 2/70 × 2 = 150/140 - Add the two like fractions:
2835/140 + 150/140 = 2835 + 150/140 = 2985/140 - 2985/140 simplified gives 597/28
- So, 81/4 + 75/70 = 597/28
In mixed form: 219/28
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