Add 40/90 and 49/42
1st number: 40/90, 2nd number: 1 7/42
40/90 + 49/42 is 29/18.
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,
40/90 = 40 × 7/90 × 7 = 280/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
49/42 = 49 × 15/42 × 15 = 735/630 - Add the two like fractions:
280/630 + 735/630 = 280 + 735/630 = 1015/630 - 1015/630 simplified gives 29/18
- So, 40/90 + 49/42 = 29/18
In mixed form: 111/18
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