Add 60/90 and 80/70
1st number: 60/90, 2nd number: 1 10/70
60/90 + 80/70 is 38/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
60/90 = 60 × 7/90 × 7 = 420/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
80/70 = 80 × 9/70 × 9 = 720/630 - Add the two like fractions:
420/630 + 720/630 = 420 + 720/630 = 1140/630 - 1140/630 simplified gives 38/21
- So, 60/90 + 80/70 = 38/21
In mixed form: 117/21
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