Answers

Add 75/42 and 42/45

1^st number: 1 33/42, 2^nd number: 42/45

75/42 + 42/45 is 571/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   75/42 = 75 × 15/42 × 15 = 1125/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   42/45 = 42 × 14/45 × 14 = 588/630
4. Add the two like fractions:
   1125/630 + 588/630 = 1125 + 588/630 = 1713/630
5. 1713/630 simplified gives 571/210
6. So, 75/42 + 42/45 = 571/210
   In mixed form: 2151/210

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁷⁵/₄₂+⁸⁴/₄₅ ⁷⁵/₈₄+⁴²/₄₅ ⁷⁵/₄₂+⁴²/₉₀

Add Fractions Calculator