Add 70/90 and 49/42
1st number: 70/90, 2nd number: 1 7/42
70/90 + 49/42 is 35/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
70/90 = 70 × 7/90 × 7 = 490/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
49/42 = 49 × 15/42 × 15 = 735/630 - Add the two like fractions:
490/630 + 735/630 = 490 + 735/630 = 1225/630 - 1225/630 simplified gives 35/18
- So, 70/90 + 49/42 = 35/18
In mixed form: 117/18
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