Add 4/42 and 70/90
4/42 + 70/90 is 55/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
4/42 = 4 × 15/42 × 15 = 60/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
70/90 = 70 × 7/90 × 7 = 490/630 - Add the two like fractions:
60/630 + 490/630 = 60 + 490/630 = 550/630 - 550/630 simplified gives 55/63
- So, 4/42 + 70/90 = 55/63
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