Add 90/70 and 12/49
1st number: 1 20/70, 2nd number: 12/49
90/70 + 12/49 is 75/49.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
90/70 = 90 × 7/70 × 7 = 630/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
12/49 = 12 × 10/49 × 10 = 120/490 - Add the two like fractions:
630/490 + 120/490 = 630 + 120/490 = 750/490 - 750/490 simplified gives 75/49
- So, 90/70 + 12/49 = 75/49
In mixed form: 126/49
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