Add 90/60 and 20/70
1st number: 1 30/60, 2nd number: 20/70
90/60 + 20/70 is 25/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
90/60 = 90 × 7/60 × 7 = 630/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
20/70 = 20 × 6/70 × 6 = 120/420 - Add the two like fractions:
630/420 + 120/420 = 630 + 120/420 = 750/420 - 750/420 simplified gives 25/14
- So, 90/60 + 20/70 = 25/14
In mixed form: 111/14
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