Add 90/42 and 70/30
1st number: 2 6/42, 2nd number: 2 10/30
90/42 + 70/30 is 94/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
90/42 = 90 × 5/42 × 5 = 450/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210 - Add the two like fractions:
450/210 + 490/210 = 450 + 490/210 = 940/210 - 940/210 simplified gives 94/21
- So, 90/42 + 70/30 = 94/21
In mixed form: 410/21
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