Add 90/98 and 60/70
90/98 + 60/70 is 87/49.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
90/98 = 90 × 5/98 × 5 = 450/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
60/70 = 60 × 7/70 × 7 = 420/490 - Add the two like fractions:
450/490 + 420/490 = 450 + 420/490 = 870/490 - 870/490 simplified gives 87/49
- So, 90/98 + 60/70 = 87/49
In mixed form: 138/49
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