Question

calculati:1/4+4/5+5/12+3/20​

Answer 1

$\it \dfrac{^{15)}1}{4}+ \dfrac{^{12)}4}{5}+ \dfrac{^{5)}5}{12}+ \dfrac{^{3)}3}{20}= \dfrac{15+48+25+9}{60}= \dfrac{97}{60}=1 \dfrac{37}{60}$