Add 75/70 and 3/84
1st number: 1 5/70, 2nd number: 3/84
75/70 + 3/84 is 31/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
75/70 = 75 × 6/70 × 6 = 450/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420 - Add the two like fractions:
450/420 + 15/420 = 450 + 15/420 = 465/420 - 465/420 simplified gives 31/28
- So, 75/70 + 3/84 = 31/28
In mixed form: 13/28
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